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 } }