#include <iostream>
#include <cmath>
using namespace std;
int main()
{
    int n;
    cin>>n;
    long int total = 0;
    while(n--)
    {
        long int length;
        cin>>length;
        long int num = 2,count = 0;
        while(length % num == 0)
            {
                count = count*num + num;
                length = length/num;
            }
        num = 3;
        while(num <= sqrt(length)+1)
        {
            while(length % num == 0)
            {
                count = count*num + num;
                length = length/num;
            }
            num = num + 2;
        }
        count = count*length + length;
        if(length!=1) count += 1;
        total += count;
    }
    cout<<total;
    return 0;
}