205728580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{541391}}^1$

素因数の和:541419

約数の個数: 24

約数和(自身を含む): 454769280

約数和(自身を除く): 249040700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 541391, 1082782, 2165564, 2706955, 5413910, 10286429, 10827820, 20572858, 41145716, 51432145, 102864290, 205728580]

約数ペア:

[(1, 205728580), (2, 102864290), (4, 51432145), (5, 41145716), (10, 20572858), (19, 10827820), (20, 10286429), (38, 5413910), (76, 2706955), (95, 2165564), (190, 1082782), (380, 541391)]