28812580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33503}}^1$

素因数の和:33555

約数の個数: 24

約数和(自身を含む): 61915392

約数和(自身を除く): 33102812

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 33503, 67006, 134012, 167515, 335030, 670060, 1440629, 2881258, 5762516, 7203145, 14406290, 28812580]

約数ペア:

[(1, 28812580), (2, 14406290), (4, 7203145), (5, 5762516), (10, 2881258), (20, 1440629), (43, 670060), (86, 335030), (172, 167515), (215, 134012), (430, 67006), (860, 33503)]