#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#define Max(a, b) ((a) > (b) ? (a) : (b))
#define Min(a, b) ((a) > (b) ? (b) : (a))
#define abs(x) ((x) > 0 ? (x) : -(x))
#define MOD 1000000007 //10^9 + 7
#define endl printf("\n")
typedef long long ll;

ll f(ll a, ll n) {
  if (a <= n + 1) {
    return a - 1;
  } else if (n < a - n) {
    return 0;
  } else {
    ll max, min;
    max = Min(n, a - 1);
    min = Max(1, a - n);
    return max - min + 1;
  }
}

int
main(int argc, char *argv[])
{
  ll n, k;
  scanf("%lld", &n);
  scanf("%lld", &k);

  ll a, b, ans = 0, x;
  for (x = 2; x * x < k; x++) {
    if (k % x == 0) {
      a = x; b = k / x;
      ans += f(a, n) * f(b, n);
    }
  }

  ans = ans + ans;
  if (x * x == k) ans += f(x, n) * f(x, n);

  printf("%lld\n", ans);

  return 0;
}