20508416

素因数分解:

$2^8\times {\mathrm{80111}}^1$

素因数の和:80127

約数の個数: 18

約数和(自身を含む): 40937232

約数和(自身を除く): 20428816

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 80111, 160222, 320444, 640888, 1281776, 2563552, 5127104, 10254208, 20508416]

約数ペア:

[(1, 20508416), (2, 10254208), (4, 5127104), (8, 2563552), (16, 1281776), (32, 640888), (64, 320444), (128, 160222), (256, 80111)]