20518372208

素因数分解:

$2^4\times {\mathrm{1459}}^1\times {\mathrm{878957}}^1$

素因数の和:880424

約数の個数: 20

約数和(自身を含む): 39781639080

約数和(自身を除く): 19263266872

約数列:

[1, 2, 4, 8, 16, 1459, 2918, 5836, 11672, 23344, 878957, 1757914, 3515828, 7031656, 14063312, 1282398263, 2564796526, 5129593052, 10259186104, 20518372208]

約数ペア:

[(1, 20518372208), (2, 10259186104), (4, 5129593052), (8, 2564796526), (16, 1282398263), (1459, 14063312), (2918, 7031656), (5836, 3515828), (11672, 1757914), (23344, 878957)]