20256728

素因数分解:

$2^3\times {\mathrm{281}}^1\times {\mathrm{9011}}^1$

素因数の和:9298

約数の個数: 16

約数和(自身を含む): 38120760

約数和(自身を除く): 17864032

約数列:

[1, 2, 4, 8, 281, 562, 1124, 2248, 9011, 18022, 36044, 72088, 2532091, 5064182, 10128364, 20256728]

約数ペア:

[(1, 20256728), (2, 10128364), (4, 5064182), (8, 2532091), (281, 72088), (562, 36044), (1124, 18022), (2248, 9011)]