65390320

素因数分解:

$2^4\times 5^1\times {\mathrm{817379}}^1$

素因数の和:817392

約数の個数: 20

約数和(自身を含む): 152032680

約数和(自身を除く): 86642360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 817379, 1634758, 3269516, 4086895, 6539032, 8173790, 13078064, 16347580, 32695160, 65390320]

約数ペア:

[(1, 65390320), (2, 32695160), (4, 16347580), (5, 13078064), (8, 8173790), (10, 6539032), (16, 4086895), (20, 3269516), (40, 1634758), (80, 817379)]