Ah, crap, here are the proper rolls:

Full-round action: full-round attack versus A5, power attack of 3.
Attack rolls: (1d20+24)[40], (1d20+19)[39], (1d20+14)[30], (1d20+9)[28]. Damage rolls: (1d8+14)[16], (1d8+14)[22], (1d8+14)[22], (1d8+14)[20]
Swift action: sudden stunning in case there's one hit, Will save DC 31 to avoid being stunned.