#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>

using namespace std;

#define int long long
#define endl "\n"

const long long INF = (long long)1e18;
const long long MOD = (long long)1e9 + 7; 

string yn(bool f){return f?"Yes":"No";}
string YN(bool f){return f?"YES":"NO";}



signed main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	cout<<fixed<<setprecision(10);
	
	int N, K;
	int ans = 0;
	cin>>N>>K;
	
	for(int i = 1; i*i <= K; i++){
		if(K%i == 0 && i <= N*2 && K/i <= N*2){
			// cout<<i<<" <><> "<<K/i<<endl;
			ans += (min(i - 1, N*2 - i + 1) * min(K/i - 1, N*2 - K/i + 1));
			if(i*i != K) ans += (min(i - 1, N*2 - i + 1) * min(K/i - 1, N*2 - K/i + 1));
		}
	}
	
	cout<<ans<<endl;
	
	
	return 0;
}