28814320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21187}}^1$

素因数の和:21217

約数の個数: 40

約数和(自身を含む): 70937424

約数和(自身を除く): 42123104

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21187, 42374, 84748, 105935, 169496, 211870, 338992, 360179, 423740, 720358, 847480, 1440716, 1694960, 1800895, 2881432, 3601790, 5762864, 7203580, 14407160, 28814320]

約数ペア:

[(1, 28814320), (2, 14407160), (4, 7203580), (5, 5762864), (8, 3601790), (10, 2881432), (16, 1800895), (17, 1694960), (20, 1440716), (34, 847480), (40, 720358), (68, 423740), (80, 360179), (85, 338992), (136, 211870), (170, 169496), (272, 105935), (340, 84748), (680, 42374), (1360, 21187)]