28870310

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 63936000

約数和(自身を除く): 35065690

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 343, 443, 490, 665, 686, 886, 931, 1330, 1715, 1862, 2215, 3101, 3430, 4430, 4655, 6202, 6517, 8417, 9310, 13034, 15505, 16834, 21707, 31010, 32585, 42085, 43414, 58919, 65170, 84170, 108535, 117838, 151949, 217070, 294595, 303898, 412433, 589190, 759745, 824866, 1519490, 2062165, 2887031, 4124330, 5774062, 14435155, 28870310]

約数ペア:

[(1, 28870310), (2, 14435155), (5, 5774062), (7, 4124330), (10, 2887031), (14, 2062165), (19, 1519490), (35, 824866), (38, 759745), (49, 589190), (70, 412433), (95, 303898), (98, 294595), (133, 217070), (190, 151949), (245, 117838), (266, 108535), (343, 84170), (443, 65170), (490, 58919), (665, 43414), (686, 42085), (886, 32585), (931, 31010), (1330, 21707), (1715, 16834), (1862, 15505), (2215, 13034), (3101, 9310), (3430, 8417), (4430, 6517), (4655, 6202)]