#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

int dmp(int x)
{
    int maxi=0,pz=0;
    if(x==1)
        return 1;
    for(int i=x/2;i>=1;i--)
    {
        if(x%i==0)
            pz=x/i*dmp(i)+1;
        if(maxi<pz)
            maxi=pz;
    }
    return maxi;
}

int main() {
    int n;
    cin >> n;

    vector <long long> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    long long sum=0;
    for(int i=0;i<n;i++)
    {
        int jk=dmp(a[i]);
        sum+=jk;
    }

  cout<<sum<<endl;
    /* Enter your code here. Print output to STDOUT */

    return 0;
}