Sum of all divisors from 1 to n.cpp

//{ Driver Code Starts
#include<bits/stdc++.h> 
using namespace std; 

// } Driver Code Ends
//User function Template for C++
class Solution
{
public:
    long long sumOfDivisors(int N)
    {
        // Write Your Code here
        long long ans=0;
        for(int i=1;i<=N;i++){
            int count=0;
            for(int j=1;j<=i;j++){
                if(i%j==0) count+=j;
            }
            ans+=count;
        }
        return ans;
    }
};

//{ Driver Code Starts.
int main()
{
    int t;
    cin >> t;
    while (t--)
    {
        int N;
        cin>>N;
        Solution ob;
        long long ans  = ob.sumOfDivisors(N);
        cout<<ans<<endl;
    }
    return 0;
}
// } Driver Code Ends