81217792

素因数分解:

$2^8\times {\mathrm{317257}}^1$

素因数の和:317273

約数の個数: 18

約数和(自身を含む): 162118838

約数和(自身を除く): 80901046

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 317257, 634514, 1269028, 2538056, 5076112, 10152224, 20304448, 40608896, 81217792]

約数ペア:

[(1, 81217792), (2, 40608896), (4, 20304448), (8, 10152224), (16, 5076112), (32, 2538056), (64, 1269028), (128, 634514), (256, 317257)]