257425926

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{640363}}^1$

素因数の和:640435

約数の個数: 16

約数和(自身を含む): 522537024

約数和(自身を除く): 265111098

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 640363, 1280726, 1921089, 3842178, 42904321, 85808642, 128712963, 257425926]

約数ペア:

[(1, 257425926), (2, 128712963), (3, 85808642), (6, 42904321), (67, 3842178), (134, 1921089), (201, 1280726), (402, 640363)]