import sys
import math

def main():
    n = int(sys.stdin.readline())
    a = list(map(int, sys.stdin.readline().split()))
    total = 0
    prev_gcds = []
    for num in a:
        curr_gcds = []
        # Process previous GCDs
        for g, cnt in prev_gcds:
            new_g = math.gcd(g, num)
            if curr_gcds and curr_gcds[-1][0] == new_g:
                curr_gcds[-1] = (new_g, curr_gcds[-1][1] + cnt)
            else:
                curr_gcds.append((new_g, cnt))
        # Add the current number as a new subarray
        new_g = num
        if curr_gcds and curr_gcds[-1][0] == new_g:
            curr_gcds[-1] = (new_g, curr_gcds[-1][1] + 1)
        else:
            curr_gcds.append((new_g, 1))
        # Update total with counts of GCD 1
        for g, cnt in curr_gcds:
            if g == 1:
                total += cnt
        # Prepare for next iteration
        prev_gcds = curr_gcds
    print(total)

if __name__ == "__main__":
    main()