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

using Int = long long;
const char newl = '\n';

template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}
template<typename T> void drop(const T &x){cout<<x<<endl;exit(0);}
template<typename T=Int>
vector<T> read(size_t n){
  vector<T> ts(n);
  for(size_t i=0;i<n;i++) cin>>ts[i];
  return ts;
}

//INSERT ABOVE HERE
signed main(){
  cin.tie(0);
  ios::sync_with_stdio(0);

  Int n,k;
  cin>>n>>k;

  auto way=[&](Int x)->Int{
    if(x<=1) return 0;
    if(x>n*2) return 0;
    // [2, n + 1]
    if(x<=n+1) return x-1;
    // [n + 1, 2n]
    return n*2-x+1;
  };

  Int ans=0;
  for(Int x=2;x*x<=k;x++){
    if(k%x) continue;
    ans+=way(x)*way(k/x);
    if(x*x!=k) ans+=way(x)*way(k/x);
  }
  cout<<ans<<newl;
  return 0;
}