#include <bits/stdc++.h>
using namespace std;

int main() {
  int64_t N, K;
  cin >> N >> K;

  int64_t ans = 0;
  for (int i = 1; 1LL * i * i <= K; ++i) {
    int64_t j = K / i;
    if (1LL * i * j != K) continue;
    auto calc = [&](int64_t q) -> int64_t {
      if (q <= N) return q - 1;
      if (q < 2 * N + 1) return N - (q - N) + 1;
      return 0;
    };
    ans += 1LL * calc(i) * calc(j);
    if (i != j) ans += 1LL * calc(i) * calc(j);
  }

  cout << ans << endl;

  return 0;
}