// tested by Hightail - https://github.com/dj3500/hightail import std.stdio, std.string, std.conv, std.algorithm; import std.range, std.array, std.math, std.typecons, std.container, core.bitop; long n; void main() { scan(n); auto made = new string[](0); for (long i = 1; i*i <= n; i++) { if (n % i == 0) { long j = n / i; made ~= i.to!string ~ j.to!string; made ~= j.to!string ~ i.to!string; } } debug { writeln("made:", made); } auto ans = made.sort().uniq().array.length.to!long; writeln(ans); } void scan(T...)(ref T args) { string[] line = readln.split; foreach (ref arg; args) { arg = line.front.to!(typeof(arg)); line.popFront(); } assert(line.empty); } void fillAll(R, T)(ref R arr, T value) { static if (is(typeof(arr[] = value))) { arr[] = value; } else { foreach (ref e; arr) { fillAll(e, value); } } }