289096820

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{79861}}^1$

素因数の和:80051

約数の個数: 24

約数和(自身を含む): 610465128

約数和(自身を除く): 321368308

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 79861, 159722, 319444, 399305, 798610, 1597220, 14454841, 28909682, 57819364, 72274205, 144548410, 289096820]

約数ペア:

[(1, 289096820), (2, 144548410), (4, 72274205), (5, 57819364), (10, 28909682), (20, 14454841), (181, 1597220), (362, 798610), (724, 399305), (905, 319444), (1810, 159722), (3620, 79861)]