28305408020

素因数分解:

$2^2\times 5^1\times {\mathrm{1415270401}}^1$

素因数の和:1415270410

約数の個数: 12

約数和(自身を含む): 59441356884

約数和(自身を除く): 31135948864

約数列:

[1, 2, 4, 5, 10, 20, 1415270401, 2830540802, 5661081604, 7076352005, 14152704010, 28305408020]

約数ペア:

[(1, 28305408020), (2, 14152704010), (4, 7076352005), (5, 5661081604), (10, 2830540802), (20, 1415270401)]