80113640

素因数分解:

$2^3\times 5^1\times {\mathrm{2002841}}^1$

素因数の和:2002852

約数の個数: 16

約数和(自身を含む): 180255780

約数和(自身を除く): 100142140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2002841, 4005682, 8011364, 10014205, 16022728, 20028410, 40056820, 80113640]

約数ペア:

[(1, 80113640), (2, 40056820), (4, 20028410), (5, 16022728), (8, 10014205), (10, 8011364), (20, 4005682), (40, 2002841)]