172620219020

素因数分解:

$2^2\times 5^1\times {\mathrm{21019}}^1\times {\mathrm{410629}}^1$

素因数の和:431657

約数の個数: 24

約数和(自身を含む): 362520589200

約数和(自身を除く): 189900370180

約数列:

[1, 2, 4, 5, 10, 20, 21019, 42038, 84076, 105095, 210190, 410629, 420380, 821258, 1642516, 2053145, 4106290, 8212580, 8631010951, 17262021902, 34524043804, 43155054755, 86310109510, 172620219020]

約数ペア:

[(1, 172620219020), (2, 86310109510), (4, 43155054755), (5, 34524043804), (10, 17262021902), (20, 8631010951), (21019, 8212580), (42038, 4106290), (84076, 2053145), (105095, 1642516), (210190, 821258), (410629, 420380)]