12660940

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1429}}^1$

素因数の和:1881

約数の個数: 24

約数和(自身を含む): 26666640

約数和(自身を除く): 14005700

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1429, 1772, 2215, 2858, 4430, 5716, 7145, 8860, 14290, 28580, 633047, 1266094, 2532188, 3165235, 6330470, 12660940]

約数ペア:

[(1, 12660940), (2, 6330470), (4, 3165235), (5, 2532188), (10, 1266094), (20, 633047), (443, 28580), (886, 14290), (1429, 8860), (1772, 7145), (2215, 5716), (2858, 4430)]