254331020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{160969}}^1$

素因数の和:161057

約数の個数: 24

約数和(自身を含む): 540859200

約数和(自身を除く): 286528180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 160969, 321938, 643876, 804845, 1609690, 3219380, 12716551, 25433102, 50866204, 63582755, 127165510, 254331020]

約数ペア:

[(1, 254331020), (2, 127165510), (4, 63582755), (5, 50866204), (10, 25433102), (20, 12716551), (79, 3219380), (158, 1609690), (316, 804845), (395, 643876), (790, 321938), (1580, 160969)]