81291145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{40343}}^1$

素因数の和:40392

約数の個数: 16

約数和(自身を含む): 108444672

約数和(自身を除く): 27153527

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 40343, 201715, 524459, 1250633, 2622295, 6253165, 16258229, 81291145]

約数ペア:

[(1, 81291145), (5, 16258229), (13, 6253165), (31, 2622295), (65, 1250633), (155, 524459), (403, 201715), (2015, 40343)]