9906020

素因数分解:

$2^2\times 5^1\times {\mathrm{495301}}^1$

素因数の和:495310

約数の個数: 12

約数和(自身を含む): 20802684

約数和(自身を除く): 10896664

約数列:

[1, 2, 4, 5, 10, 20, 495301, 990602, 1981204, 2476505, 4953010, 9906020]

約数ペア:

[(1, 9906020), (2, 4953010), (4, 2476505), (5, 1981204), (10, 990602), (20, 495301)]