快速求因子数

#include <iostream>
#include <cmath>
#include <algorithm>
#include <cstring>
#define int long long
#define endl '\n'
#define QAQ ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
using namespace std;
const int N=1e5+5;
int f(int n)
{
    int x=0,ans=1;
    for(int i=2;i*i<=n;i++)
    {
        x=0;
        while(n%i==0)
        {
            x++;
            n/=i;
        }
        ans*=(x+1);
    }
    return n>1?ans*2:ans;
}
void solve()
{
    int n;
    cin>>n;
    cout<<f(n)<<endl;
}
signed main()
{
    QAQ;
    int t=1;
    cin>>t;
    while(t--)
        solve();
    
    
    
    return 0;
}
​