import sys
input=lambda: sys.stdin.readline().rstrip()
n=int(input())
def gcd(a,b):
  while b:
    a,b=b,a%b
  return a
a=int(input())
ans=a
for _ in range(n-1):
  b=int(input())
  ans+=b
  a=gcd(a,b)
print(ans//a)