397702960

素因数分解:

$2^4\times 5^1\times {\mathrm{4971287}}^1$

素因数の和:4971300

約数の個数: 20

約数和(自身を含む): 924659568

約数和(自身を除く): 526956608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4971287, 9942574, 19885148, 24856435, 39770296, 49712870, 79540592, 99425740, 198851480, 397702960]

約数ペア:

[(1, 397702960), (2, 198851480), (4, 99425740), (5, 79540592), (8, 49712870), (10, 39770296), (16, 24856435), (20, 19885148), (40, 9942574), (80, 4971287)]