12490959980

素因数分解:

$2^2\times 5^1\times {\mathrm{624547999}}^1$

素因数の和:624548008

約数の個数: 12

約数和(自身を含む): 26231016000

約数和(自身を除く): 13740056020

約数列:

[1, 2, 4, 5, 10, 20, 624547999, 1249095998, 2498191996, 3122739995, 6245479990, 12490959980]

約数ペア:

[(1, 12490959980), (2, 6245479990), (4, 3122739995), (5, 2498191996), (10, 1249095998), (20, 624547999)]