Range won't matter when he can teleport him and himself to where he wants, skill won't matter when an trillion bones and gaster blasters are firing at you. Luck still won't work also Sans has AP, Durability and Definitely Hax's.
The one thing Sans used once in the fight. And literally never uses it to dodge attacks.
Skill won't matter
Umm. Yes it will, skill very much can matter in a fight. Especially when it's skill with Supernatural luck while fighting someone who is gonna have bad luck
Luck won't help
Umm. Yes it will. It gives Sans bad luck and Mr. Bean has good luck which protects him from harm. That's really gonna help.
Skill gets destroyed by danmaku, He has Gravity Manipulation so Range wouldn't be that useful and Good Luck sure it's not like Mr Bean will keep dodging every attack. Also Sans can teleport his own attacks. Also even if Mr. Bean landed a hit on Sans It wouldn't even kill him as he as Durability and AP.
If Sans first attack Is canon then Bean gets forced to the ground and Bones pierce him unless "Good Luck" somehow does something, I believe Mr. Bean Is baseline 9-A and Sans is 21.7 kilograms of TNT or 15.03 Kilograms of TNT.