import java.util.*;
import java.util.stream.LongStream;

public class Solution {

    static List<Long> primes(long x) {
        List<Long> result = new ArrayList<>();
        if (x == 1L) return result;
        long z = x;
        long i = 2;
        long sqrt = Math.round(Math.sqrt(x));
        while (true) {
            if (i > sqrt) {
                result.add(z);
                break;
            }
            if (z % i != 0) {
                i++;
                continue;
            }
            result.add(i);
            z = z / i;
            sqrt = Math.round(Math.sqrt(z));
        }
        //System.out.println(result);
        return result;
    }

    static long[] findImportantDivisors(long x, List<Long> primes) {
        long[] result = new long[primes.size() + 1];
        result[0] = x;
        for (int i = primes.size() - 1, r = 1; i >= 0; i--, r++) {
            result[r] = result[r - 1] / primes.get(i);
        }
        return result;
    }

    static long moves(long x) {
        long[] divisors = findImportantDivisors(x, primes(x));
        long[] daycounts = new long[divisors.length]; // length to days
        long[] sums = new long[divisors.length]; // length to sum
        daycounts[0] = 1L;
        sums[0] = 1L;
        for (int i = 1; i < divisors.length; i++) {
            long newdaycount = divisors[i - 1] / divisors[i] * daycounts[i - 1];
            daycounts[i] = newdaycount;
            long newsum = newdaycount + sums[i - 1];
            sums[i] = newsum;
        }
        return sums[divisors.length - 1];
    }

    static long longestSequence(long[] a) {
        long result = LongStream.of(a).map(Solution::moves).sum();
        return result;
    }

    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();
    }
}