func_code_string: #include <bits/stdc++.h>   using namespace std;   inline int read() {     int x = 0, f = 1;     char ch = getchar();     while (ch <  0  || ch >  9 ) {       if (ch ==  - ) f = -1;       ch = getchar();     }     while (ch >=  0  && ch <=  9 ) {       x = x * 10 + ch -  0 ;       ch = getchar();     }     return x * f;   }   bool b[1000000 + 5];   int Q, last[1000000 + 5], s[1000000 / 5 + 5], num, p[1000000 * 2 + 5],       inv[1000000 * 2 + 5], a[65], c[65], ans, f[8][8], sum[25];   inline int C(int n, int m) {     return m > n || m < 0                ? 0                : 1LL * p[n] * inv[m] % 1000000007 * inv[n - m] % 1000000007;   }   inline int S(int n, int m) { return m ? C(n + m - 1, m - 1) : (n ? 0 : 1); }   int main() {     p[0] = p[1] = inv[0] = inv[1] = sum[0] = 1;     for (int i = 2; i <= 1000000; ++i) {       if (!b[i]) s[++num] = i, last[i] = i;       for (int j = 1; s[j] * i <= 1000000; ++j) {         b[s[j] * i] = 1;         last[s[j] * i] = s[j];         if (i % s[j] == 0) break;       }     }     for (int i = 2; i <= 1000000 * 2; ++i)       p[i] = 1LL * p[i - 1] * i % 1000000007,       inv[i] =           1LL * (1000000007 - 1000000007 / i) * inv[1000000007 % i] % 1000000007;     for (int i = 2; i <= 1000000 * 2; ++i)       inv[i] = 1LL * inv[i - 1] * inv[i] % 1000000007;     for (Q = read(); Q--;) {       int m = read(), n = read();       num = ans = 0;       while (n > 1) {         ++num;         c[num] = 0;         a[num] = last[n];         for (int t = last[n]; n % t == 0; n /= t) ++c[num];       }       for (int i = 1; i <= 20; ++i) sum[i] = (sum[i - 1] + S(i, m)) % 1000000007;       memset(f, 0, sizeof(f));       f[0][0] = 1;       for (int i = 1; i <= num; ++i)         for (int j = 0; j < i; ++j) {           f[i][j] = (f[i][j] + 1LL * f[i - 1][j] * S(c[i], m)) % 1000000007;           f[i][j + 1] =               (f[i][j + 1] + 1LL * f[i - 1][j] * sum[c[i] - 1]) % 1000000007;         }       for (int i = 0; i <= num; ++i)         ans = (ans + 1LL * (1 << i) * f[num][i]) % 1000000007;       printf( %d n , ans);     }     return 0;   }   