256840929

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{120413}}^1$

素因数の和:120501

約数の個数: 16

約数和(自身を含む): 385324800

約数和(自身を除く): 128483871

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 120413, 361239, 1083717, 3251151, 9512627, 28537881, 85613643, 256840929]

約数ペア:

[(1, 256840929), (3, 85613643), (9, 28537881), (27, 9512627), (79, 3251151), (237, 1083717), (711, 361239), (2133, 120413)]