20928410

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67511}}^1$

素因数の和:67549

約数の個数: 16

約数和(自身を含む): 38886912

約数和(自身を除く): 17958502

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 67511, 135022, 337555, 675110, 2092841, 4185682, 10464205, 20928410]

約数ペア:

[(1, 20928410), (2, 10464205), (5, 4185682), (10, 2092841), (31, 675110), (62, 337555), (155, 135022), (310, 67511)]