Slični zadaci

Find all surjective functions $f: \mathbb{N} \rightarrow \mathbb{N}$ such that for all $m,n \in \mathbb{N}$
$m \mid n \Leftrightarrow f(m) \mid f(n)$

Zadaci

#	Naslov	Oznake	Rj.
2200	IMO Shortlist 2005 problem N4	2005 shortlist tb	13
2260	IMO Shortlist 2007 problem N4	2007 shortlist tb	4
2287	IMO Shortlist 2008 problem N4	2008 shortlist tb	6
2541	PEN problem K1	funkcija tb	2
2543	PEN problem K4	funkcija tb	0
2544	PEN problem K5	funkcija tb	0

Školjka