import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*; public class Solution { static long longestSequence(long[] a) { // Return the length of the longest possible sequence of moves. long sum=0; int n; long m=1; for(int i=0;i=1 && a[i]!=1){ if(a[i]%j==0){ // System.out.println(sum); sum+=(long)(m*(a[i])/j); m=(long)(a[i]/j); a[i]=j; n=n=(int)Math.sqrt(a[i]); j=n; } else j--; } } return sum; } public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); long[] a = new long[n]; for(int a_i = 0; a_i < n; a_i++){ a[a_i] = in.nextLong(); } long result = longestSequence(a); System.out.println(result); in.close(); } }