20128428

素因数分解:

$2^2\times 3^2\times {\mathrm{559123}}^1$

素因数の和:559133

約数の個数: 18

約数和(自身を含む): 50880284

約数和(自身を除く): 30751856

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 559123, 1118246, 1677369, 2236492, 3354738, 5032107, 6709476, 10064214, 20128428]

約数ペア:

[(1, 20128428), (2, 10064214), (3, 6709476), (4, 5032107), (6, 3354738), (9, 2236492), (12, 1677369), (18, 1118246), (36, 559123)]