90181240

素因数分解:

$2^3\times 5^1\times {\mathrm{2254531}}^1$

素因数の和:2254542

約数の個数: 16

約数和(自身を含む): 202907880

約数和(自身を除く): 112726640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2254531, 4509062, 9018124, 11272655, 18036248, 22545310, 45090620, 90181240]

約数ペア:

[(1, 90181240), (2, 45090620), (4, 22545310), (5, 18036248), (8, 11272655), (10, 9018124), (20, 4509062), (40, 2254531)]