#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,j,k,sum=0;
      for(i=0;i<n;i++){
            int c=0;
          sum=sum+1;
           for(j=1;j<=a[i];j++){
                         if(a[i]%j==0)
                            c=c+1;
                                 }
                  if(c==2)
                    sum=sum+a[i];
                else  if(a[i]%2==0){
                        sum=sum+a[i];
                    while(a[i]%2==0){
                       sum=sum+a[i]/2;
                        a[i]=a[i]/2;
                                    }
                  
                                   }
    }
    
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;
}