程序运行出错，不知道怎么改！？

#include<iostream>
#include<string>
using namespace std;
class Invoice
{
private:
    string PartNumber;
    string PartDescribe;
    int SellAccount;
    int Price;
public:
    Invoice(string Pn,string Pd,int Sa,int Pr)
    {
        PartNumber=Pn;
        PartDescribe=Pd;
        SellAccount=Sa;
        Price=Pr;
        if(SellAccount<0){SellAccount=0;}
        if(Price<0){Price=0;}
    }
    int getInvoiceAmount(){return (SellAccount*Price);}
    void setPartNumber(string pn){PartNumber=pn;}
    void setPartDescribe(string pd){PartDescribe=pd;}
    void setSellAccount(int sa)
    {
        SellAccount=sa;
        if(SellAccount<0){SellAccount=0;}
    }
    void setPrice(int pr)
    {
        Price=pr;
        if(Price<0){Price=0;}
    }
    string getPartNumber(){return PartNumber;}
    string getPartDescribe(){return PartDescribe;}
    int getSellAccount(){return SellAccount;}
    int getsetPrice(){return Price;}
};
int main()
{
    Invoice iv1(1314,"yifu",5,184);
    Invoice iv2(520,"xiezi",4,285);
    cout<<"The invoice of iv1's message:"<<endl;
    cout<<"PartNumber"<<"\t"<<"PartDescribe"<<"\t"<<"SellAccountPrie"<<endl;
    cout<<iv1.getPartNumber()<<"\t"<<iv1.getPartDescribe()<<"\t"<<iv1.getSellAccount()<<"\t"<<iv1.getsetPrice()<<"\t"<<iv1.getInvoiceAmount()<<endl;
    cout<<"The invoice of iv2's message:"<<endl;
    cout<<"PartNumber"<<"\t"<<"PartDescribe"<<"\t"<<"SellAccountPrie"<<endl;
    cout<<iv2.getPartNumber()<<"\t"<<iv2.getPartDescribe()<<"\t"<<iv2.getSellAccount()<<"\t"<<iv2.getsetPrice()<<"\t"<<iv2.getInvoiceAmount()<<endl;
    return 0;
}
出错：E:\VC6.0兼容win7\Microsoft Visual Studio\MyProjects\123\1.cpp(40) : error C2664: '__thiscall Invoice::Invoice(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_trait
s<char>,class std::allocator<char> >,int,int)' : cannot convert parameter 1 from 'const int' to 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >'
        No constructor could take the source type, or constructor overload resolution was ambiguous
E:\VC6.0兼容win7\Microsoft Visual Studio\MyProjects\123\1.cpp(41) : error C2664: '__thiscall Invoice::Invoice(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_trait
s<char>,class std::allocator<char> >,int,int)' : cannot convert parameter 1 from 'const int' to 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >'
        No constructor could take the source type, or constructor overload resolution was ambiguous