What should i do with AK on the button against a table of limpers?

Raise. Play with PokerStove and the limpers ranges. Worst case scenario is you're a slight dog on an AI w PPs but more often they'll have AXs, worse Ax and other unpaired broadways, etc. PF you're probably at least a 60/40 fav. You can obv get the money in on any A or K flop. If limpers only have 20bb or less, just put the money in.