The amount listed is for solo kills, form AP is divided by Archon members and rounded down.
Archon Hunters award 20 AP per kill and +1 AP for every 10 archon class levels. Archon Hunter Masters follow the same rules but have a higher base value and additional AP bonus per 10 levels.
If the presiding Mayor has flagged Vassago's Audience Chamber as NPK, all Archon Hunters killed within the confines of the Towne of Rune will award an additional 5 AP. This bonus is not split amongst formation members.
CPK rooms award a 10% bonus to the AP of a mob killed in it. Run mobs that spawn in CPK already have this value applied to them on the table.