#include <bits/stdc++.h>
using namespace std::literals::string_literals;
using i64 = long long;
using std::cout;
using std::endl;
using std::cin;

template<typename T>
std::vector<T> make_v(size_t a){return std::vector<T>(a);}

template<typename T,typename... Ts>
auto make_v(size_t a,Ts... ts){
  return std::vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));
}

int main() {
	i64 n, k; scanf("%lld%lld", &n, &k);

	auto calc = [n](i64 s) {
		if(s > n * 2 or s < 2) return 0LL;
		
		return std::min(s - 1, n - (s - n) + 1);
	};

	i64 ans = 0;
	for(i64 i = 1; i * i <= k; i++) {
		if(k % i) continue;
		ans += calc(i) * calc(k / i) * 2LL;
	}
	printf("%lld\n", ans);
	return 0;
}