import sys
import math

def main():
    n = int(sys.stdin.readline())
    A = list(map(int, sys.stdin.readline().split()))
    result = 0
    prev = {}

    for a in A:
        if a == 1:
            count = sum(prev.values()) + 1
            result += count
            prev = {1: count}
            continue
        temp = {a: 1}
        prev_list = list(prev.items())
        for g, cnt in prev_list:
            new_g = math.gcd(g, a)
            if new_g in temp:
                temp[new_g] += cnt
            else:
                temp[new_g] = cnt
        if 1 in temp:
            result += temp[1]
        prev = temp

    print(result)

if __name__ == "__main__":
    main()