#include <iostream>
#include <vector>
using namespace std;
typedef long long ll;

int main(){
    ll N,K,ans = 0;
    cin >> N >> K;
    auto calc = [&](ll a){
        if(a<=N+1) return a-1;
        else return 2*N-a+1; 
    };
    for(ll i=2;i*i<=K;i++){
        if(K%i!=0) continue;
        if(i<=2*N && 2<=K/i && K/i<=2*N){
            ans += calc(i)*calc(K/i)*(i*i!=K? 2:1);
        }
    }
    cout << ans << endl;
}