#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

long int longestSequence(int n, long int* a) 
{
    
    int i;
    
    int j=1;
    int sum=0;
    for(i=0;i<n;i++)
    {     
        j=1;
        
        while(j<=a[i]&&a[i]!=0)
        {     
            if(a[i]%j==0)
            {     
                sum=sum+a[i]/j;
                 a[i]=a[i]/j;
                j=1;
             }
            else;
           
            j++;;
         }
       
      }
 return sum;
}
int main() {
    int n; 
    scanf("%i", &n);
    long int *a = malloc(sizeof(long int) * n);
    for (int a_i = 0; a_i < n; a_i++) {
       scanf("%li",&a[a_i]);
    }
    long int result = longestSequence(n, a);
    printf("%ld\n", result);
    return 0;
}