N = int(raw_input())
A = [int(raw_input()) for i in range(N)]
for i in range(100,1,-1):
	flag = False
	for j in range(N):
		if A[j] % i == 0:continue
		flag = True
		break
	if not flag:
		for j in range(N):
			A[j] /= i
print sum(A)