#include <bits/stdc++.h>
typedef long long ll;
using namespace std;


int main() {
    
    ll N,K;
    cin>>N>>K;
    
    ll sum=0;
    
    for(ll n=2;n*n<=K;n++){
        if(K%n!=0)continue;
        ll p=K/n;
        
        ll an=0;
        ll ap=0;
        
        if(N<n && n<=2*N){
            an=2*N-n+1;
        }else if(n<=N){
            an=n-1;
        }
        if(N<p && p<=2*N){
            ap=2*N-p+1;
        }else if(p<=N){
            ap=p-1;
        }
        
        //cout<<n<<":"<<an<<" : "<<p<<" : "<<ap<<endl;
        if(n!=p){
            sum+=an*ap*2;
        }else{
            sum+=an*ap;
        }
       
        
    }
    
    cout<<sum<<endl;
    
    
    
    
}