256876949

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{409}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 317399040

約数和(自身を除く): 60522091

約数列:

[1, 7, 23, 47, 83, 161, 329, 409, 581, 1081, 1909, 2863, 3901, 7567, 9407, 13363, 19223, 27307, 33947, 65849, 89723, 134561, 237629, 442129, 628061, 780781, 1595509, 3094903, 5465467, 11168563, 36696707, 256876949]

約数ペア:

[(1, 256876949), (7, 36696707), (23, 11168563), (47, 5465467), (83, 3094903), (161, 1595509), (329, 780781), (409, 628061), (581, 442129), (1081, 237629), (1909, 134561), (2863, 89723), (3901, 65849), (7567, 33947), (9407, 27307), (13363, 19223)]