8708360020

素因数分解:

$2^2\times 5^1\times {\mathrm{3221}}^1\times {\mathrm{135181}}^1$

素因数の和:138411

約数の個数: 24

約数和(自身を含む): 18293368968

約数和(自身を除く): 9585008948

約数列:

[1, 2, 4, 5, 10, 20, 3221, 6442, 12884, 16105, 32210, 64420, 135181, 270362, 540724, 675905, 1351810, 2703620, 435418001, 870836002, 1741672004, 2177090005, 4354180010, 8708360020]

約数ペア:

[(1, 8708360020), (2, 4354180010), (4, 2177090005), (5, 1741672004), (10, 870836002), (20, 435418001), (3221, 2703620), (6442, 1351810), (12884, 675905), (16105, 540724), (32210, 270362), (64420, 135181)]