809118520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{5791}}^1$

素因数の和:6308

約数の個数: 64

約数和(自身を含む): 2085120000

約数和(自身を除く): 1276001480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499, 998, 1996, 2495, 3493, 3992, 4990, 5791, 6986, 9980, 11582, 13972, 17465, 19960, 23164, 27944, 28955, 34930, 40537, 46328, 57910, 69860, 81074, 115820, 139720, 162148, 202685, 231640, 324296, 405370, 810740, 1621480, 2889709, 5779418, 11558836, 14448545, 20227963, 23117672, 28897090, 40455926, 57794180, 80911852, 101139815, 115588360, 161823704, 202279630, 404559260, 809118520]

約数ペア:

[(1, 809118520), (2, 404559260), (4, 202279630), (5, 161823704), (7, 115588360), (8, 101139815), (10, 80911852), (14, 57794180), (20, 40455926), (28, 28897090), (35, 23117672), (40, 20227963), (56, 14448545), (70, 11558836), (140, 5779418), (280, 2889709), (499, 1621480), (998, 810740), (1996, 405370), (2495, 324296), (3493, 231640), (3992, 202685), (4990, 162148), (5791, 139720), (6986, 115820), (9980, 81074), (11582, 69860), (13972, 57910), (17465, 46328), (19960, 40537), (23164, 34930), (27944, 28955)]