20545340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35423}}^1$

素因数の和:35461

約数の個数: 24

約数和(自身を含む): 44634240

約数和(自身を除く): 24088900

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35423, 70846, 141692, 177115, 354230, 708460, 1027267, 2054534, 4109068, 5136335, 10272670, 20545340]

約数ペア:

[(1, 20545340), (2, 10272670), (4, 5136335), (5, 4109068), (10, 2054534), (20, 1027267), (29, 708460), (58, 354230), (116, 177115), (145, 141692), (290, 70846), (580, 35423)]