128812735

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{4021}}^1$

素因数の和:4218

約数の個数: 16

約数和(自身を含む): 159271200

約数和(自身を除く): 30458465

約数列:

[1, 5, 43, 149, 215, 745, 4021, 6407, 20105, 32035, 172903, 599129, 864515, 2995645, 25762547, 128812735]

約数ペア:

[(1, 128812735), (5, 25762547), (43, 2995645), (149, 864515), (215, 599129), (745, 172903), (4021, 32035), (6407, 20105)]