80518580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211891}}^1$

素因数の和:211919

約数の個数: 24

約数和(自身を含む): 177989280

約数和(自身を除く): 97470700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 211891, 423782, 847564, 1059455, 2118910, 4025929, 4237820, 8051858, 16103716, 20129645, 40259290, 80518580]

約数ペア:

[(1, 80518580), (2, 40259290), (4, 20129645), (5, 16103716), (10, 8051858), (19, 4237820), (20, 4025929), (38, 2118910), (76, 1059455), (95, 847564), (190, 423782), (380, 211891)]