#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define mp make_pair


int main()
{
	int n;
	cin >> n;
	ll ans=0;
	while(n--)
	{
		ll a,i=2;
		cin >> a;
		ll lol=a;
		ll z=1;
		for(i=2;i*i<=a;i++)
		{
			int cnt=0;
			while(a%i==0)
			{
				z=z*i;
				cnt++;
				a=a/i;
				ans+=lol/z;
				//cout	<< ans << endl;
			}
		}
		if(a>1)
			ans++;
		ans+=lol;
	}
	cout << ans << endl;
}