28086555

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 25827045

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 53, 103, 105, 147, 159, 245, 265, 309, 343, 371, 515, 721, 735, 795, 1029, 1113, 1545, 1715, 1855, 2163, 2597, 3605, 5047, 5145, 5459, 5565, 7791, 10815, 12985, 15141, 16377, 18179, 25235, 27295, 35329, 38213, 38955, 54537, 75705, 81885, 90895, 105987, 114639, 176645, 191065, 267491, 272685, 529935, 573195, 802473, 1337455, 1872437, 4012365, 5617311, 9362185, 28086555]

約数ペア:

[(1, 28086555), (3, 9362185), (5, 5617311), (7, 4012365), (15, 1872437), (21, 1337455), (35, 802473), (49, 573195), (53, 529935), (103, 272685), (105, 267491), (147, 191065), (159, 176645), (245, 114639), (265, 105987), (309, 90895), (343, 81885), (371, 75705), (515, 54537), (721, 38955), (735, 38213), (795, 35329), (1029, 27295), (1113, 25235), (1545, 18179), (1715, 16377), (1855, 15141), (2163, 12985), (2597, 10815), (3605, 7791), (5047, 5565), (5145, 5459)]