12391880

素因数分解:

$2^3\times 5^1\times {\mathrm{309797}}^1$

素因数の和:309808

約数の個数: 16

約数和(自身を含む): 27881820

約数和(自身を除く): 15489940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 309797, 619594, 1239188, 1548985, 2478376, 3097970, 6195940, 12391880]

約数ペア:

[(1, 12391880), (2, 6195940), (4, 3097970), (5, 2478376), (8, 1548985), (10, 1239188), (20, 619594), (40, 309797)]