import math
import sys

def main():
    input = sys.stdin.read().split()
    n = int(input[0])
    a = list(map(int, input[1:n+1]))
    
    res = 0
    prev_gcds = []  # List of tuples (g, count)
    
    for x in a:
        if x == 1:
            current_count = sum(cnt for g, cnt in prev_gcds) + 1
            res += current_count
            prev_gcds = [(1, current_count)]
        else:
            curr = {}
            # Handle current element alone
            curr[x] = 1
            # Handle previous elements
            for g, cnt in prev_gcds:
                new_g = math.gcd(g, x)
                if new_g in curr:
                    curr[new_g] += cnt
                else:
                    curr[new_g] = cnt
            # Add the count of 1 to the result
            res += curr.get(1, 0)
            # Update prev_gcds
            prev_gcds = list(curr.items())
    
    print(res)

if __name__ == "__main__":
    main()