#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

ll n,t, s,a,i,m;

int main(){
	scanf("%lld", &t);
	for(s=0;t--;){
		scanf("%lld", &n);
		a = 1;
		m = sqrt(n);
		for(i=2;n>1&&i<=m;){
			if(n%i==0){
				a = a*i+1;
				n/=i;
			}
			else
				i++;
		}
		if(n>1){
			a = a*n+1;
		}
		s += a;
	}
	printf("%lld\n", s);
	return 0;
}