20744852020

素因数分解:

$2^2\times 5^1\times {\mathrm{4229}}^1\times {\mathrm{245269}}^1$

素因数の和:249507

約数の個数: 24

約数和(自身を含む): 43574668200

約数和(自身を除く): 22829816180

約数列:

[1, 2, 4, 5, 10, 20, 4229, 8458, 16916, 21145, 42290, 84580, 245269, 490538, 981076, 1226345, 2452690, 4905380, 1037242601, 2074485202, 4148970404, 5186213005, 10372426010, 20744852020]

約数ペア:

[(1, 20744852020), (2, 10372426010), (4, 5186213005), (5, 4148970404), (10, 2074485202), (20, 1037242601), (4229, 4905380), (8458, 2452690), (16916, 1226345), (21145, 981076), (42290, 490538), (84580, 245269)]