number=gets.to_i
middle_number=number/2+1
counter=0
log_number=-1
(middle_number).times do|i|
	if number% (i+1) ==0
		if log_number !=i+1
			if number/(i+1)==(i+1)
				counter+=1
				break
			else
				counter+=2
			end
		else
			break
		end
		log_number=number/(i+1)
	end
end
print counter