20180858864

素因数分解:

$2^4\times {\mathrm{2221}}^1\times {\mathrm{567899}}^1$

素因数の和:570128

約数の個数: 20

約数和(自身を含む): 39118087800

約数和(自身を除く): 18937228936

約数列:

[1, 2, 4, 8, 16, 2221, 4442, 8884, 17768, 35536, 567899, 1135798, 2271596, 4543192, 9086384, 1261303679, 2522607358, 5045214716, 10090429432, 20180858864]

約数ペア:

[(1, 20180858864), (2, 10090429432), (4, 5045214716), (8, 2522607358), (16, 1261303679), (2221, 9086384), (4442, 4543192), (8884, 2271596), (17768, 1135798), (35536, 567899)]