20908760

素因数分解:

$2^3\times 5^1\times {\mathrm{522719}}^1$

素因数の和:522730

約数の個数: 16

約数和(自身を含む): 47044800

約数和(自身を除く): 26136040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 522719, 1045438, 2090876, 2613595, 4181752, 5227190, 10454380, 20908760]

約数ペア:

[(1, 20908760), (2, 10454380), (4, 5227190), (5, 4181752), (8, 2613595), (10, 2090876), (20, 1045438), (40, 522719)]