#MultiPerfect
Mathober prompts have been posted and mathober website updated

www.fractalkitty.com/mathober-202...

and mathober.com

#mathober #mathober2026 #mathart
September 10, 2026 at 9:59 PM
Part of me wants my YouTube channel to have this kind of energy.
www.youtube.com/watch?v=6WDd...
Friendly Numbers and the Negative Level of the Divisor Function
Let me tell you about "friendly numbers" and "solitary numbers". Along the way we will meet "multiperfect numbers", level -1 of the divisor function, a myste...
www.youtube.com
January 30, 2024 at 1:19 AM
L\'aszl\'o T\'oth: Odd Spoof Multiperfect Numbers Of Higher Order https://arxiv.org/abs/2510.01752 https://arxiv.org/pdf/2510.01752 https://arxiv.org/html/2510.01752
October 3, 2025 at 6:39 AM
akin to Descartes' number. An example is $8999757$, which would be an odd multiperfect number, if one of its prime factors, $61$, was a square. We briefly describe an algorithm for searching for such numbers and discuss a [2/3 of https://arxiv.org/abs/2502.16954v1]
February 25, 2025 at 6:12 AM
arXiv:2502.16954v1 Announce Type: new
Abstract: We generalize the definition of spoof perfect numbers to multiperfect numbers and study their characteristics. As a result, we find several new odd spoof multiperfect numbers, [1/3 of https://arxiv.org/abs/2502.16954v1]
February 25, 2025 at 6:11 AM
February 25, 2025 at 6:11 AM
L\'aszl\'o T\'oth
Odd Spoof Multiperfect Numbers Of Higher Order
https://arxiv.org/abs/2510.01752
October 3, 2025 at 5:44 AM
L\'aszl\'o T\'oth
Odd Spoof Multiperfect Numbers
https://arxiv.org/abs/2502.16954
February 25, 2025 at 5:26 AM
Tomohiro Yamada
Explicit sieve estimates and nonexistence of odd multiperfect numbers of a certain form
https://arxiv.org/abs/2103.16936
August 13, 2024 at 5:02 AM
Tomohiro Yamada
Explicit sieve estimates and nonexistence of odd multiperfect numbers of a certain form
https://arxiv.org/abs/2103.16936
February 27, 2024 at 5:03 AM