20400896

素因数分解:

$2^8\times {\mathrm{79691}}^1$

素因数の和:79707

約数の個数: 18

約数和(自身を含む): 40722612

約数和(自身を除く): 20321716

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 79691, 159382, 318764, 637528, 1275056, 2550112, 5100224, 10200448, 20400896]

約数ペア:

[(1, 20400896), (2, 10200448), (4, 5100224), (8, 2550112), (16, 1275056), (32, 637528), (64, 318764), (128, 159382), (256, 79691)]