import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[] arr = new int[n];
		for (int i = 0; i < n; i++) {
		    arr[i] = sc.nextInt();
		}
		int count = 0;
		for (int i = 0; i < n - 2; i++) {
		    for (int j = i + 1; j < n - 1; j++) {
		        int gcd = getGCD(arr[i], arr[j]);
		        for (int k = j + 1; k < n; k++) {
		            if (getGCD(gcd, arr[k]) == 1) {
		                count++;
		            }
		        }
		    }
		}
		System.out.println(count);
	}
	
	static int getGCD(int x, int y) {
	    if (x % y == 0) {
	        return y;
	    } else {
	        return getGCD(y, x % y);
	    }
	}
}