20430556

素因数分解:

$2^2\times {\mathrm{181}}^1\times {\mathrm{28219}}^1$

素因数の和:28404

約数の個数: 12

約数和(自身を含む): 35952280

約数和(自身を除く): 15521724

約数列:

[1, 2, 4, 181, 362, 724, 28219, 56438, 112876, 5107639, 10215278, 20430556]

約数ペア:

[(1, 20430556), (2, 10215278), (4, 5107639), (181, 112876), (362, 56438), (724, 28219)]