28716820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130531}}^1$

素因数の和:130551

約数の個数: 24

約数和(自身を含む): 65788128

約数和(自身を除く): 37071308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130531, 261062, 522124, 652655, 1305310, 1435841, 2610620, 2871682, 5743364, 7179205, 14358410, 28716820]

約数ペア:

[(1, 28716820), (2, 14358410), (4, 7179205), (5, 5743364), (10, 2871682), (11, 2610620), (20, 1435841), (22, 1305310), (44, 652655), (55, 522124), (110, 261062), (220, 130531)]