20328640

素因数分解:

$2^6\times 5^1\times {\mathrm{63527}}^1$

素因数の和:63544

約数の個数: 28

約数和(自身を含む): 48408336

約数和(自身を除く): 28079696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63527, 127054, 254108, 317635, 508216, 635270, 1016432, 1270540, 2032864, 2541080, 4065728, 5082160, 10164320, 20328640]

約数ペア:

[(1, 20328640), (2, 10164320), (4, 5082160), (5, 4065728), (8, 2541080), (10, 2032864), (16, 1270540), (20, 1016432), (32, 635270), (40, 508216), (64, 317635), (80, 254108), (160, 127054), (320, 63527)]