#include <stdio.h>

typedef long long int ll;

ll val(ll n, ll x) {
	n++;
	if (x > (n << 1)) return 0;
	else if (x > n) x = (n << 1) - x;
	return x - 1;
}

int main() {
	ll n, k, ans = 0;
	scanf("%lld%lld", &n, &k);
	for (ll i = 1; i * i <= k; i++) {
		if (k % i == 0) {
				if (i * i == k) {
					ans <<= 1;
					ans += val(n, i) * val(n, i);
					printf("%lld\n", ans);
					return 0;
				}
				else ans += val(n, i) * val(n, k / i);
		}
	}
	ans <<= 1;
	printf("%lld\n", ans);
}