289970858

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1\times {\mathrm{1987}}^1$

素因数の和:2677

約数の個数: 16

約数和(自身を含む): 439284384

約数和(自身を除く): 149313526

約数列:

[1, 2, 131, 262, 557, 1114, 1987, 3974, 72967, 145934, 260297, 520594, 1106759, 2213518, 144985429, 289970858]

約数ペア:

[(1, 289970858), (2, 144985429), (131, 2213518), (262, 1106759), (557, 520594), (1114, 260297), (1987, 145934), (3974, 72967)]