20495810

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23029}}^1$

素因数の和:23125

約数の個数: 16

約数和(自身を含む): 37308600

約数和(自身を除く): 16812790

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23029, 46058, 115145, 230290, 2049581, 4099162, 10247905, 20495810]

約数ペア:

[(1, 20495810), (2, 10247905), (5, 4099162), (10, 2049581), (89, 230290), (178, 115145), (445, 46058), (890, 23029)]