local n = io.read("*n")
local i = 1
local ret = 0
local map = {}
while(i * i <= n) do
  if(n % i == 0) then
    local j = n / i
    map[i ..j], map[j ..i] = true, true
  end
  i = i + 1
end
for k, v in pairs(map) do
  ret = ret + 1
end
print(ret)