39195440

素因数分解:

$2^4\times 5^1\times {\mathrm{489943}}^1$

素因数の和:489956

約数の個数: 20

約数和(自身を含む): 91129584

約数和(自身を除く): 51934144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 489943, 979886, 1959772, 2449715, 3919544, 4899430, 7839088, 9798860, 19597720, 39195440]

約数ペア:

[(1, 39195440), (2, 19597720), (4, 9798860), (5, 7839088), (8, 4899430), (10, 3919544), (16, 2449715), (20, 1959772), (40, 979886), (80, 489943)]