20648176

素因数分解:

$2^4\times {\mathrm{1009}}^1\times {\mathrm{1279}}^1$

素因数の和:2296

約数の個数: 20

約数和(自身を含む): 40076800

約数和(自身を除く): 19428624

約数列:

[1, 2, 4, 8, 16, 1009, 1279, 2018, 2558, 4036, 5116, 8072, 10232, 16144, 20464, 1290511, 2581022, 5162044, 10324088, 20648176]

約数ペア:

[(1, 20648176), (2, 10324088), (4, 5162044), (8, 2581022), (16, 1290511), (1009, 20464), (1279, 16144), (2018, 10232), (2558, 8072), (4036, 5116)]