module S = Set.Make (struct
  type t = string
  let compare = String.compare
end)

let () =
  let n = read_int () in
  let rec doit i s =
    if i * i > n then s
    else doit (i + 1)
      (if n mod i <> 0 then s
       else
         let x, y = string_of_int i, string_of_int (n / i) in
         S.(s |> add (x ^ y) |> add (y ^ x))) in
  doit 1 S.empty
  |> S.cardinal
  |> Printf.printf "%d\n"