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Cod sursa(job #530224)
#include <fstream>
using namespace std;
ifstream in ("sumdiv.in");
ofstream out ("sumdiv.out");
const int mod = 9901;
int rez, a, b;
int pow (int a, int n) {
if (n == 0) {
return 1;
}
if (n % 2) {
return a * pow (a * a % mod, n >> 1) % mod;
}
return pow (a * a % mod, n >> 1) % mod;
}
void add (int x, int y) {
rez = rez * (pow (x, y + 1) + mod - 1) % mod * pow (x - 1, y - 2) % mod;
}
void citire () {
in >> a >> b;
for (int i = 2; i * i <= a; ++i) {
if (a % i) {
int put = 0;
while (a % i) {
a /= i;
++put;
}
add (i, put * b);
}
}
if (a != 1) {
add (a, b);
}
}
void afisare () {
out << rez << '\n';
}
int main () {
citire ();
afisare ();
return 0;
}