N = int(input())
a = 1
s = set()

while N<a**2:
	if N & a == 0:
		b = n//a
		c = str(a)
		d = str(b)
		e = c + d
		f = d + c
		s.add(e)
		s.add(f)
	a += 1
print(len(s))