import math
N = int(input())
count = 0
ans = list()
X = list()
for i in range(0, math.floor(math.sqrt(N))):
	q = N/(i+1)
	if q.is_integer(): #割り切れるか判定
		ans.append(i+1)
		ans.append(int(q))
for i in range(0, len(ans), 2):
	X.append(str(ans[i]) + str(ans[i+1]))
	X.append(str(ans[i+1]) + str(ans[i]))
X_uni = list(set(X)) #重複の削除
print(len(X_uni))