309897455

素因数分解:

$5^1\times 7^1\times {\mathrm{2213}}^1\times {\mathrm{4001}}^1$

素因数の和:6226

約数の個数: 16

約数和(自身を含む): 425300544

約数和(自身を除く): 115403089

約数列:

[1, 5, 7, 35, 2213, 4001, 11065, 15491, 20005, 28007, 77455, 140035, 8854213, 44271065, 61979491, 309897455]

約数ペア:

[(1, 309897455), (5, 61979491), (7, 44271065), (35, 8854213), (2213, 140035), (4001, 77455), (11065, 28007), (15491, 20005)]