858103640

素因数分解:

$2^3\times 5^1\times {\mathrm{21452591}}^1$

素因数の和:21452602

約数の個数: 16

約数和(自身を含む): 1930733280

約数和(自身を除く): 1072629640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21452591, 42905182, 85810364, 107262955, 171620728, 214525910, 429051820, 858103640]

約数ペア:

[(1, 858103640), (2, 429051820), (4, 214525910), (5, 171620728), (8, 107262955), (10, 85810364), (20, 42905182), (40, 21452591)]