990882984

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23879}}^1$

素因数の和:23927

約数の個数: 128

約数和(自身を含む): 3209472000

約数和(自身を除く): 2218589016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 19, 21, 24, 26, 28, 38, 39, 42, 52, 56, 57, 76, 78, 84, 91, 104, 114, 133, 152, 156, 168, 182, 228, 247, 266, 273, 312, 364, 399, 456, 494, 532, 546, 728, 741, 798, 988, 1064, 1092, 1482, 1596, 1729, 1976, 2184, 2964, 3192, 3458, 5187, 5928, 6916, 10374, 13832, 20748, 23879, 41496, 47758, 71637, 95516, 143274, 167153, 191032, 286548, 310427, 334306, 453701, 501459, 573096, 620854, 668612, 907402, 931281, 1002918, 1241708, 1337224, 1361103, 1814804, 1862562, 2005836, 2172989, 2483416, 2722206, 3175907, 3629608, 3725124, 4011672, 4345978, 5444412, 5898113, 6351814, 6518967, 7450248, 8691956, 9527721, 10888824, 11796226, 12703628, 13037934, 17383912, 17694339, 19055442, 23592452, 25407256, 26075868, 35388678, 38110884, 41286791, 47184904, 52151736, 70777356, 76221768, 82573582, 123860373, 141554712, 165147164, 247720746, 330294328, 495441492, 990882984]

約数ペア:

[(1, 990882984), (2, 495441492), (3, 330294328), (4, 247720746), (6, 165147164), (7, 141554712), (8, 123860373), (12, 82573582), (13, 76221768), (14, 70777356), (19, 52151736), (21, 47184904), (24, 41286791), (26, 38110884), (28, 35388678), (38, 26075868), (39, 25407256), (42, 23592452), (52, 19055442), (56, 17694339), (57, 17383912), (76, 13037934), (78, 12703628), (84, 11796226), (91, 10888824), (104, 9527721), (114, 8691956), (133, 7450248), (152, 6518967), (156, 6351814), (168, 5898113), (182, 5444412), (228, 4345978), (247, 4011672), (266, 3725124), (273, 3629608), (312, 3175907), (364, 2722206), (399, 2483416), (456, 2172989), (494, 2005836), (532, 1862562), (546, 1814804), (728, 1361103), (741, 1337224), (798, 1241708), (988, 1002918), (1064, 931281), (1092, 907402), (1482, 668612), (1596, 620854), (1729, 573096), (1976, 501459), (2184, 453701), (2964, 334306), (3192, 310427), (3458, 286548), (5187, 191032), (5928, 167153), (6916, 143274), (10374, 95516), (13832, 71637), (20748, 47758), (23879, 41496)]