Pagini recente » Cod sursa (job #2487124) | Cod sursa (job #1144649) | Cod sursa (job #304067) | Cod sursa (job #3150419) | Cod sursa (job #3221837)
#include <bits/stdc++.h>
using namespace std;
ifstream fin("sumdiv.in");
ofstream fout("sumdiv.out");
const int mod = 9901;
int a, b;
static inline int Put(int a, int n) {
int p = 1;
while(n) {
if(n & 1) p = (p * a) % mod;
a = (a * a) % mod;
n >>= 1;
}
return p;
}
static inline int Inv(int a) {
return Put(a, mod - 2);
}
static inline int Divi(int a) {
int d = 2;
int sum = 1;
while(d * d <= a) {
int e = 0;
while(a % d == 0) e++;
if(e) {
sum = 1LL * (sum * (Put(d, e * b + 1) - 1)) % mod;
sum = 1LL * (sum * Inv(d - 1)) % mod;
}
d++;
}
if(1 < a) {
sum = 1LL * (sum * (Put(a, b + 1) - 1)) % mod;
sum = 1LL * (sum * Inv(a - 1)) % mod;
}
return sum;
}
int main() {
fin >> a >> b;
fout << Divi(a);
return 0;
}