405920164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{7806157}}^1$

素因数の和:7806174

約数の個数: 12

約数和(自身を含む): 765003484

約数和(自身を除く): 359083320

約数列:

[1, 2, 4, 13, 26, 52, 7806157, 15612314, 31224628, 101480041, 202960082, 405920164]

約数ペア:

[(1, 405920164), (2, 202960082), (4, 101480041), (13, 31224628), (26, 15612314), (52, 7806157)]