20407841288

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{19473131}}^1$

素因数の和:19473268

約数の個数: 16

約数和(自身を含む): 38556801360

約数和(自身を除く): 18148960072

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 19473131, 38946262, 77892524, 155785048, 2550980161, 5101960322, 10203920644, 20407841288]

約数ペア:

[(1, 20407841288), (2, 10203920644), (4, 5101960322), (8, 2550980161), (131, 155785048), (262, 77892524), (524, 38946262), (1048, 19473131)]