128601320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{60661}}^1$

素因数の和:60725

約数の個数: 32

約数和(自身を含む): 294817320

約数和(自身を除く): 166216000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 60661, 121322, 242644, 303305, 485288, 606610, 1213220, 2426440, 3215033, 6430066, 12860132, 16075165, 25720264, 32150330, 64300660, 128601320]

約数ペア:

[(1, 128601320), (2, 64300660), (4, 32150330), (5, 25720264), (8, 16075165), (10, 12860132), (20, 6430066), (40, 3215033), (53, 2426440), (106, 1213220), (212, 606610), (265, 485288), (424, 303305), (530, 242644), (1060, 121322), (2120, 60661)]