import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        HashMap<Integer, Long> counts = new HashMap<>();
        counts.put(0, 1L);
        for (int i = 0; i < n; i++) {
            int x = sc.nextInt();
            HashMap<Integer, Long> next = new HashMap<>();
            for (int y : counts.keySet()) {
                int gcd = getGCD(x, y);
                next.put(gcd, next.getOrDefault(gcd, 0L) + counts.get(y));
            }
            for (int y : next.keySet()) {
                counts.put(y, counts.getOrDefault(y, 0L) + next.get(y));
            }
        }
        System.out.println(counts.getOrDefault(1, 0L));
    }
    
    static int getGCD(int x, int y) {
        if (y == 0) {
            return x;
        } else {
            return getGCD(y, x % y);
        }
    }
    
}
class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}