20364580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53591}}^1$

素因数の和:53619

約数の個数: 24

約数和(自身を含む): 45017280

約数和(自身を除く): 24652700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53591, 107182, 214364, 267955, 535910, 1018229, 1071820, 2036458, 4072916, 5091145, 10182290, 20364580]

約数ペア:

[(1, 20364580), (2, 10182290), (4, 5091145), (5, 4072916), (10, 2036458), (19, 1071820), (20, 1018229), (38, 535910), (76, 267955), (95, 214364), (190, 107182), (380, 53591)]