func_code_string: #include <bits/stdc++.h>   using namespace std;   long long res;   const long long mod = 1073741824;   long long d(int a, int b, int c) {     vector<int> q(102, 0);     for (int i = 2; i <= a; i++)       if (a % i == 0) {         while (a % i == 0) {           a /= i;           q[i]++;         }       }     for (int i = 2; i <= b; i++)       if (b % i == 0) {         while (b % i == 0) {           b /= i;           q[i]++;         }       }     for (int i = 2; i <= c; i++)       if (c % i == 0) {         while (c % i == 0) {           c /= i;           q[i]++;         }       }     long long res = 1;     for (int i = 0; i < 102; i++) res = (res * (q[i] + 1)) % mod;     return res;   }   int main() {     int a, b, c;     cin >> a >> b >> c;     for (int i = 1; i <= a; i++)       for (int j = 1; j <= b; j++)         for (int k = 1; k <= c; k++) res = (res % mod + d(i, j, k) % mod) % mod;     cout << res;   }   