I tried to display the numpad keys for work (e.g. /). What I did: map! / (On the numeric keypad) / but when I try to use it, I get "Q" and then "/" and a space after.
I found this thread, looking for the same, so for the answer to the record for me it was used <kDivide>as a key:
<kDivide>
map! <kDivide> :help <kDivide><CR>
Located on the numeric keypad or in the main area of the keyboard, the keys /send a simple "/", therefore they cannot be distinguished from the vi point of view.