#include <bits/stdc++.h>
using namespace std;
int n;
long long arr[105];
long long ans(long long cur)
{
    long long pieces = 1;
    long long sum = 1;
    vector<long long> primes;
    while(cur % 2 == 0)
    {
        primes.push_back(2);
        cur /= 2;
    }
    for(long long i = 3;i*i <= cur;i += 2)
    {
        while(cur % i == 0)
        {
            primes.push_back(i);
            cur /= i;
        }
    }
    if(cur > 1)
        primes.push_back(cur);
    reverse(primes.begin(),primes.end());
    for(int i = 0;i < primes.size();i++)
    {
        pieces *= primes[i];
        sum += pieces;
    }
    return sum;
}
int main()
{
    cin >> n;
    long long total = 0;
    for(int i = 0;i < n;i++)
        cin >> arr[i],total += ans(arr[i]);
    cout << total;
}