668492080

素因数分解:

$2^4\times 5^1\times {\mathrm{8356151}}^1$

素因数の和:8356164

約数の個数: 20

約数和(自身を含む): 1554244272

約数和(自身を除く): 885752192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8356151, 16712302, 33424604, 41780755, 66849208, 83561510, 133698416, 167123020, 334246040, 668492080]

約数ペア:

[(1, 668492080), (2, 334246040), (4, 167123020), (5, 133698416), (8, 83561510), (10, 66849208), (16, 41780755), (20, 33424604), (40, 16712302), (80, 8356151)]