245427820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1115581}}^1$

素因数の和:1115601

約数の個数: 24

約数和(自身を含む): 562253328

約数和(自身を除く): 316825508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1115581, 2231162, 4462324, 5577905, 11155810, 12271391, 22311620, 24542782, 49085564, 61356955, 122713910, 245427820]

約数ペア:

[(1, 245427820), (2, 122713910), (4, 61356955), (5, 49085564), (10, 24542782), (11, 22311620), (20, 12271391), (22, 11155810), (44, 5577905), (55, 4462324), (110, 2231162), (220, 1115581)]