20210660

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9811}}^1$

素因数の和:9923

約数の個数: 24

約数和(自身を含む): 42858816

約数和(自身を除く): 22648156

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9811, 19622, 39244, 49055, 98110, 196220, 1010533, 2021066, 4042132, 5052665, 10105330, 20210660]

約数ペア:

[(1, 20210660), (2, 10105330), (4, 5052665), (5, 4042132), (10, 2021066), (20, 1010533), (103, 196220), (206, 98110), (412, 49055), (515, 39244), (1030, 19622), (2060, 9811)]