#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
#define rep(i,s,e) for(i64 (i) = (s);(i) < (e);(i)++)
#define all(x) x.begin(),x.end()
#define let auto const

int main() {
  i64 N, K;
  cin >> N >> K;
  i64 ans = 0;
  for(i64 i = 1;i * i <= K;i++) {
    if(K % i == 0) {
      i64 j = K / i;
      i64 ni, nj;
      if(i > 2 * N) ni = 0;
      else if(i <= N + 1) ni = i - 1;
      else ni = N - (i - N) + 1;
      if(j > 2 * N) nj = 0;
      else if(j <= N + 1) nj = j - 1;
      else nj = N - (j - N) + 1;
      ans += ni * nj;
      if(K / i != i) ans += ni * nj;
    }
  }

  cout << ans << endl;
}