8257220

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2281}}^1$

素因数の和:2471

約数の個数: 24

約数和(自身を含む): 17443608

約数和(自身を除く): 9186388

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 2281, 3620, 4562, 9124, 11405, 22810, 45620, 412861, 825722, 1651444, 2064305, 4128610, 8257220]

約数ペア:

[(1, 8257220), (2, 4128610), (4, 2064305), (5, 1651444), (10, 825722), (20, 412861), (181, 45620), (362, 22810), (724, 11405), (905, 9124), (1810, 4562), (2281, 3620)]