8907880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5179}}^1$

素因数の和:5233

約数の個数: 32

約数和(自身を含む): 20512800

約数和(自身を除く): 11604920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 5179, 10358, 20716, 25895, 41432, 51790, 103580, 207160, 222697, 445394, 890788, 1113485, 1781576, 2226970, 4453940, 8907880]

約数ペア:

[(1, 8907880), (2, 4453940), (4, 2226970), (5, 1781576), (8, 1113485), (10, 890788), (20, 445394), (40, 222697), (43, 207160), (86, 103580), (172, 51790), (215, 41432), (344, 25895), (430, 20716), (860, 10358), (1720, 5179)]