289357820

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{57641}}^1$

素因数の和:57901

約数の個数: 24

約数和(自身を含む): 610082928

約数和(自身を除く): 320725108

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 57641, 115282, 230564, 288205, 576410, 1152820, 14467891, 28935782, 57871564, 72339455, 144678910, 289357820]

約数ペア:

[(1, 289357820), (2, 144678910), (4, 72339455), (5, 57871564), (10, 28935782), (20, 14467891), (251, 1152820), (502, 576410), (1004, 288205), (1255, 230564), (2510, 115282), (5020, 57641)]