20402944

素因数分解:

$2^8\times {\mathrm{79699}}^1$

素因数の和:79715

約数の個数: 18

約数和(自身を含む): 40726700

約数和(自身を除く): 20323756

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 79699, 159398, 318796, 637592, 1275184, 2550368, 5100736, 10201472, 20402944]

約数ペア:

[(1, 20402944), (2, 10201472), (4, 5100736), (8, 2550368), (16, 1275184), (32, 637592), (64, 318796), (128, 159398), (256, 79699)]