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Cod sursa(job #756699)
#include<fstream>
#define mod 9901
using namespace std;
ifstream fin("sumdiv.in");
ofstream fout("sumdiv.out");
long A, B, S;
long put(long a, long b)
{
if(!b) return 1;
if(b % 2)
return (a * put(a,b - 1)) % mod;
long t = put(a, b/2) % mod;
return (t * t) %mod;
}
long desc(int x, int nr)
{
nr *= B;
long aux1 = (put(x, nr + 1) - 1 ) % mod;
long aux2 = put(x - 1, mod - 2) % mod;
return (aux1 * aux2) %mod;
}
void read()
{
S = 1;
fin >>A>>B;
for(int i = 2; i * i <= A ; ++i)
{
if(A % i == 0)
{
int nr = 0;
while(A % i==0)
A /= i, ++nr;
long K = desc(i, nr);
S = S * K % mod;
}
}
//fout << put( 2, 10) ;
if(A != 1)
S = (S * desc(A, 1)) % mod;
fout <<S;
}
int main()
{
read();
fin.close();
return 0;
}