20543860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19381}}^1$

素因数の和:19443

約数の個数: 24

約数和(自身を含む): 43958376

約数和(自身を除く): 23414516

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19381, 38762, 77524, 96905, 193810, 387620, 1027193, 2054386, 4108772, 5135965, 10271930, 20543860]

約数ペア:

[(1, 20543860), (2, 10271930), (4, 5135965), (5, 4108772), (10, 2054386), (20, 1027193), (53, 387620), (106, 193810), (212, 96905), (265, 77524), (530, 38762), (1060, 19381)]