638288642

素因数分解:

$2^1\times {\mathrm{4721}}^1\times {\mathrm{67601}}^1$

素因数の和:72324

約数の個数: 8

約数和(自身を含む): 957649932

約数和(自身を除く): 319361290

約数列:

[1, 2, 4721, 9442, 67601, 135202, 319144321, 638288642]

約数ペア:

[(1, 638288642), (2, 319144321), (4721, 135202), (9442, 67601)]