18882160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:566

約数の個数: 80

約数和(自身を含む): 49104000

約数和(自身を除く): 30221840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 499, 688, 860, 880, 946, 998, 1720, 1892, 1996, 2365, 2495, 3440, 3784, 3992, 4730, 4990, 5489, 7568, 7984, 9460, 9980, 10978, 18920, 19960, 21457, 21956, 27445, 37840, 39920, 42914, 43912, 54890, 85828, 87824, 107285, 109780, 171656, 214570, 219560, 236027, 343312, 429140, 439120, 472054, 858280, 944108, 1180135, 1716560, 1888216, 2360270, 3776432, 4720540, 9441080, 18882160]

約数ペア:

[(1, 18882160), (2, 9441080), (4, 4720540), (5, 3776432), (8, 2360270), (10, 1888216), (11, 1716560), (16, 1180135), (20, 944108), (22, 858280), (40, 472054), (43, 439120), (44, 429140), (55, 343312), (80, 236027), (86, 219560), (88, 214570), (110, 171656), (172, 109780), (176, 107285), (215, 87824), (220, 85828), (344, 54890), (430, 43912), (440, 42914), (473, 39920), (499, 37840), (688, 27445), (860, 21956), (880, 21457), (946, 19960), (998, 18920), (1720, 10978), (1892, 9980), (1996, 9460), (2365, 7984), (2495, 7568), (3440, 5489), (3784, 4990), (3992, 4730)]