289040020

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{18133}}^1$

素因数の和:18939

約数の個数: 24

約数和(自身を含む): 607779144

約数和(自身を除く): 318739124

約数列:

[1, 2, 4, 5, 10, 20, 797, 1594, 3188, 3985, 7970, 15940, 18133, 36266, 72532, 90665, 181330, 362660, 14452001, 28904002, 57808004, 72260005, 144520010, 289040020]

約数ペア:

[(1, 289040020), (2, 144520010), (4, 72260005), (5, 57808004), (10, 28904002), (20, 14452001), (797, 362660), (1594, 181330), (3188, 90665), (3985, 72532), (7970, 36266), (15940, 18133)]