20681204880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{46807}}^1$

素因数の和:47093

約数の個数: 160

約数和(自身を含む): 73550721024

約数和(自身を除く): 52869516144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 263, 280, 336, 420, 526, 560, 789, 840, 1052, 1315, 1578, 1680, 1841, 2104, 2630, 3156, 3682, 3945, 4208, 5260, 5523, 6312, 7364, 7890, 9205, 10520, 11046, 12624, 14728, 15780, 18410, 21040, 22092, 27615, 29456, 31560, 36820, 44184, 46807, 55230, 63120, 73640, 88368, 93614, 110460, 140421, 147280, 187228, 220920, 234035, 280842, 327649, 374456, 441840, 468070, 561684, 655298, 702105, 748912, 936140, 982947, 1123368, 1310596, 1404210, 1638245, 1872280, 1965894, 2246736, 2621192, 2808420, 3276490, 3744560, 3931788, 4914735, 5242384, 5616840, 6552980, 7863576, 9829470, 11233680, 12310241, 13105960, 15727152, 19658940, 24620482, 26211920, 36930723, 39317880, 49240964, 61551205, 73861446, 78635760, 86171687, 98481928, 123102410, 147722892, 172343374, 184653615, 196963856, 246204820, 258515061, 295445784, 344686748, 369307230, 430858435, 492409640, 517030122, 590891568, 689373496, 738614460, 861716870, 984819280, 1034060244, 1292575305, 1378746992, 1477228920, 1723433740, 2068120488, 2585150610, 2954457840, 3446867480, 4136240976, 5170301220, 6893734960, 10340602440, 20681204880]

約数ペア:

[(1, 20681204880), (2, 10340602440), (3, 6893734960), (4, 5170301220), (5, 4136240976), (6, 3446867480), (7, 2954457840), (8, 2585150610), (10, 2068120488), (12, 1723433740), (14, 1477228920), (15, 1378746992), (16, 1292575305), (20, 1034060244), (21, 984819280), (24, 861716870), (28, 738614460), (30, 689373496), (35, 590891568), (40, 517030122), (42, 492409640), (48, 430858435), (56, 369307230), (60, 344686748), (70, 295445784), (80, 258515061), (84, 246204820), (105, 196963856), (112, 184653615), (120, 172343374), (140, 147722892), (168, 123102410), (210, 98481928), (240, 86171687), (263, 78635760), (280, 73861446), (336, 61551205), (420, 49240964), (526, 39317880), (560, 36930723), (789, 26211920), (840, 24620482), (1052, 19658940), (1315, 15727152), (1578, 13105960), (1680, 12310241), (1841, 11233680), (2104, 9829470), (2630, 7863576), (3156, 6552980), (3682, 5616840), (3945, 5242384), (4208, 4914735), (5260, 3931788), (5523, 3744560), (6312, 3276490), (7364, 2808420), (7890, 2621192), (9205, 2246736), (10520, 1965894), (11046, 1872280), (12624, 1638245), (14728, 1404210), (15780, 1310596), (18410, 1123368), (21040, 982947), (22092, 936140), (27615, 748912), (29456, 702105), (31560, 655298), (36820, 561684), (44184, 468070), (46807, 441840), (55230, 374456), (63120, 327649), (73640, 280842), (88368, 234035), (93614, 220920), (110460, 187228), (140421, 147280)]