28687160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42187}}^1$

素因数の和:42215

約数の個数: 32

約数和(自身を含む): 68344560

約数和(自身を除く): 39657400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42187, 84374, 168748, 210935, 337496, 421870, 717179, 843740, 1434358, 1687480, 2868716, 3585895, 5737432, 7171790, 14343580, 28687160]

約数ペア:

[(1, 28687160), (2, 14343580), (4, 7171790), (5, 5737432), (8, 3585895), (10, 2868716), (17, 1687480), (20, 1434358), (34, 843740), (40, 717179), (68, 421870), (85, 337496), (136, 210935), (170, 168748), (340, 84374), (680, 42187)]