Proper divisors: Difference between revisions

<syntaxhighlight lang="langur">val .getproper = fn( .x) {: for[=[]] .i of .x \ 2 { if .x div .i: _for ~= [.i] } }

val .cntproper = fn( .x) {: for[=0] .i of .x \ 2 { if .x div .i: _for += 1 } }

_for ~= $"\{{.i:2;}} -> \{{.getproper(.i);}}\n"

writeln $"The following number(s) <= 20000 have the most proper divisors (\{{.max;}})"

writeln .most</syntaxhighlight>