28386855

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 160

約数和(自身を含む): 66908160

約数和(自身を除く): 38521305

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 27, 31, 35, 45, 51, 57, 63, 81, 85, 93, 95, 105, 119, 133, 135, 153, 155, 171, 189, 217, 255, 279, 285, 315, 323, 357, 399, 405, 459, 465, 513, 527, 567, 589, 595, 651, 665, 765, 837, 855, 945, 969, 1071, 1085, 1197, 1377, 1395, 1539, 1581, 1615, 1767, 1785, 1953, 1995, 2261, 2295, 2511, 2565, 2635, 2835, 2907, 2945, 3213, 3255, 3591, 3689, 4123, 4185, 4743, 4845, 5301, 5355, 5859, 5985, 6783, 6885, 7695, 7905, 8721, 8835, 9639, 9765, 10013, 10773, 11067, 11305, 12369, 12555, 14229, 14535, 15903, 16065, 17577, 17955, 18445, 20349, 20615, 23715, 26163, 26505, 29295, 30039, 33201, 33915, 37107, 42687, 43605, 47709, 48195, 50065, 53865, 55335, 61047, 61845, 70091, 71145, 79515, 87885, 90117, 99603, 101745, 111321, 130815, 150195, 166005, 183141, 185535, 210273, 213435, 238545, 270351, 298809, 305235, 333963, 350455, 450585, 498015, 556605, 630819, 811053, 915705, 1051365, 1351755, 1494045, 1669815, 1892457, 3154095, 4055265, 5677371, 9462285, 28386855]

約数ペア:

[(1, 28386855), (3, 9462285), (5, 5677371), (7, 4055265), (9, 3154095), (15, 1892457), (17, 1669815), (19, 1494045), (21, 1351755), (27, 1051365), (31, 915705), (35, 811053), (45, 630819), (51, 556605), (57, 498015), (63, 450585), (81, 350455), (85, 333963), (93, 305235), (95, 298809), (105, 270351), (119, 238545), (133, 213435), (135, 210273), (153, 185535), (155, 183141), (171, 166005), (189, 150195), (217, 130815), (255, 111321), (279, 101745), (285, 99603), (315, 90117), (323, 87885), (357, 79515), (399, 71145), (405, 70091), (459, 61845), (465, 61047), (513, 55335), (527, 53865), (567, 50065), (589, 48195), (595, 47709), (651, 43605), (665, 42687), (765, 37107), (837, 33915), (855, 33201), (945, 30039), (969, 29295), (1071, 26505), (1085, 26163), (1197, 23715), (1377, 20615), (1395, 20349), (1539, 18445), (1581, 17955), (1615, 17577), (1767, 16065), (1785, 15903), (1953, 14535), (1995, 14229), (2261, 12555), (2295, 12369), (2511, 11305), (2565, 11067), (2635, 10773), (2835, 10013), (2907, 9765), (2945, 9639), (3213, 8835), (3255, 8721), (3591, 7905), (3689, 7695), (4123, 6885), (4185, 6783), (4743, 5985), (4845, 5859), (5301, 5355)]