20512160

素因数分解:

$2^5\times 5^1\times {\mathrm{128201}}^1$

素因数の和:128216

約数の個数: 24

約数和(自身を含む): 48460356

約数和(自身を除く): 27948196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 128201, 256402, 512804, 641005, 1025608, 1282010, 2051216, 2564020, 4102432, 5128040, 10256080, 20512160]

約数ペア:

[(1, 20512160), (2, 10256080), (4, 5128040), (5, 4102432), (8, 2564020), (10, 2051216), (16, 1282010), (20, 1025608), (32, 641005), (40, 512804), (80, 256402), (160, 128201)]