80112140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{56417}}^1$

素因数の和:56497

約数の個数: 24

約数和(自身を含む): 170608032

約数和(自身を除く): 90495892

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 56417, 112834, 225668, 282085, 564170, 1128340, 4005607, 8011214, 16022428, 20028035, 40056070, 80112140]

約数ペア:

[(1, 80112140), (2, 40056070), (4, 20028035), (5, 16022428), (10, 8011214), (20, 4005607), (71, 1128340), (142, 564170), (284, 282085), (355, 225668), (710, 112834), (1420, 56417)]