There's at least 4
I need a math genius to explain how many Chess positions there are.

God might know - so we could pray for guidance.
And the devil is well known to play chess (usually with DEATH and while playing the fiddle) so for some perfectly triffling and incorporeal payment I expect he would whisper the answer to you.
WHAT HAPPENS IN THE CHURCH STAYS IN TE CHURCH

this was the best my online calculator could handle so this is my solution to the number of positions in chess

The upper bound that I can calculate is 5.58×10⁵² positions.
The number of both king positions on the board is (4×60)+(24×58)+(36×55) = 3,612.
The number of ways to place 15 white pieces into the remaining 62 squares is less than C(62, 15)×6¹⁵.
The number of ways to place 15 black pieces into the remaining 47 squares is less than C(47, 15)×6¹⁵.
So we have upper bound 3,612 × (C(62, 15)×6¹⁵) × (C(47, 15)×6¹⁵) or about 5.58×10⁵² positions. This number includes pawn promotions and many illegal positions.
For a more detailed proof, check out this blog.
https://www.chess.com/blog/jomsup/math-proves-upper-bound-for-the-number-of-chess-positions
1x64=24+4+36 36x55+4x60+24x58=3612
3612 is the number of positions possible with just 2 kings
3612x62x61=13660584
13660584 is the number of positions with 2 queens and 2 kings