40294220

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{11131}}^1$

素因数の和:11321

約数の個数: 24

約数和(自身を含む): 85093008

約数和(自身を除く): 44798788

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 11131, 22262, 44524, 55655, 111310, 222620, 2014711, 4029422, 8058844, 10073555, 20147110, 40294220]

約数ペア:

[(1, 40294220), (2, 20147110), (4, 10073555), (5, 8058844), (10, 4029422), (20, 2014711), (181, 222620), (362, 111310), (724, 55655), (905, 44524), (1810, 22262), (3620, 11131)]