20801024

素因数分解:

$2^9\times {\mathrm{40627}}^1$

素因数の和:40645

約数の個数: 20

約数和(自身を含む): 41562444

約数和(自身を除く): 20761420

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 40627, 81254, 162508, 325016, 650032, 1300064, 2600128, 5200256, 10400512, 20801024]

約数ペア:

[(1, 20801024), (2, 10400512), (4, 5200256), (8, 2600128), (16, 1300064), (32, 650032), (64, 325016), (128, 162508), (256, 81254), (512, 40627)]