import sys
from math import gcd
from collections import defaultdict

def main():
    n = int(sys.stdin.readline())
    a = list(map(int, sys.stdin.readline().split()))
    
    total = 0
    prev_gcds = defaultdict(int)
    
    for num in a:
        curr_gcds = defaultdict(int)
        # Process each GCD from the previous step
        for g, cnt in prev_gcds.items():
            new_g = gcd(g, num)
            curr_gcds[new_g] += cnt
        # Add the subarray consisting of just the current number
        curr_gcds[num] += 1
        # Check if any GCD is 1 and add to total
        if 1 in curr_gcds:
            total += curr_gcds[1]
        # Update prev_gcds for the next iteration
        prev_gcds = curr_gcds
    
    print(total)

if __name__ == "__main__":
    main()