Middle guy looks 10-series filter, the rest are as follows:
506 24 98-02 (Supersedes to 578 12 09-01): 3120K air filter (primary) (FYI, the parts sites I saw had them for $60+)
506 14 58-01: 268K/272K
503 60 83-01: 51/55
530 02 98-01 (I think it's actually 530 02 98-11): Husky 36/41
503 81 80-01: 362/365/372/etc
503 41 32-01: 40/45/49