256440959

素因数分解:

${\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1\times {\mathrm{397}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 270206976

約数和(自身を除く): 13766017

約数列:

[1, 31, 67, 311, 397, 2077, 9641, 12307, 20837, 26599, 123467, 645947, 824569, 3827477, 8272289, 256440959]

約数ペア:

[(1, 256440959), (31, 8272289), (67, 3827477), (311, 824569), (397, 645947), (2077, 123467), (9641, 26599), (12307, 20837)]