Sum of Divisors for OCaml Golf Competition by tanakh

while 0=0do let n,s=read_int(),ref 0in for i=1to n do n/i*i=n&()=(s:=!s+i)done;Printf.printf"%d: %d\x0d
"n!s done

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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