import sys;input=sys.stdin.readline
from math import gcd
if __name__ == '__main__':
    n = int(input())
    X = list(map(int, input().split()))
    num = 2**(n-1).bit_length()
    seg=[0]*2*num
    for i in range(n):
        seg[i+num-1]=X[i]
    for i in range(num-2,-1,-1) :
        seg[i]=gcd(seg[2*i+1],seg[2*i+2]) 

    j = 1
    r = 0
    for i in range(n):
        while j <= n:
            p, q = i, j
            res=0
            if q<=p:
                j+=1
                continue
            p += num-1
            q += num-2
            while q-p>1:
                if p&1 == 0:
                    res = gcd(res,seg[p])
                if q&1 == 1:
                    res = gcd(res,seg[q])
                    q -= 1
                p = p//2
                q = (q-1)//2
            if p == q:
                res = gcd(res,seg[p])
            else:
                res = gcd(gcd(res,seg[p]),seg[q])
            if res == 1:
                break
            j += 1
        r += n+1-j
    print(r)