#include <bits/stdc++.h>
using namespace std;
#define int long long
#define FOR(i, s, n) for (int i = (s); i < (n); i++)
#define RFOR(i, s, n) for (int i = (n) - 1; i >= (s); i--)
#define REP(i, n) FOR(i, 0, n)
#define RREP(i, n) RFOR(i, 0, n)
#define ALL(a) a.begin(), a.end()
const long long MOD = 1e9+7, INF = 1e18;
template<class T>inline bool CHMAX(T&a,T b){if(a<b){a=b;return true;}return false;}
template<class T>inline bool CHMIN(T&a,T b){if(a>b){a=b;return true;}return false;}



signed main(){
	int N,K,ans = 0;
	cin>>N>>K;
	for(int i = 2;i*i <= K;i++){
		if(K%i)continue;
		int a = i,b = K / i;
		int x = max(0ll,(a-1)-max(0ll,(a-1-N)*2));
		int y = max(0ll,(b-1)-max(0ll,(b-1-N)*2));
		ans += x*y;
		if(a!=b)ans += x*y;
	}
	cout<<ans<<endl;
}