#pragma GCC target("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
int main(){
  long long N;
  cin >> N;
  long long ans = 0;
  for (long long A = 1; A <= N; A++){
    for (long long B = A; B <= N; B++){
      long long p = (A + B + 1) * A * B;
      if (p > N * N){
        break;
      }
      for (long long C = B; C <= N; C++){
        long long p2 = (A + B + C) * A * B * C;
        if (p2 > N * N){
          break;
        }
        if (p2 == N * N){
          ans++;
        }
      }
    }
  }
  cout << ans << endl;
}