12138680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{17851}}^1$

素因数の和:17879

約数の個数: 32

約数和(自身を含む): 28920240

約数和(自身を除く): 16781560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 17851, 35702, 71404, 89255, 142808, 178510, 303467, 357020, 606934, 714040, 1213868, 1517335, 2427736, 3034670, 6069340, 12138680]

約数ペア:

[(1, 12138680), (2, 6069340), (4, 3034670), (5, 2427736), (8, 1517335), (10, 1213868), (17, 714040), (20, 606934), (34, 357020), (40, 303467), (68, 178510), (85, 142808), (136, 89255), (170, 71404), (340, 35702), (680, 17851)]