21178049280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{177907}}^1$

素因数の和:177962

約数の個数: 144

約数和(自身を含む): 69819638784

約数和(自身を除く): 48641589504

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 768, 930, 960, 992, 1240, 1280, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3840, 3968, 4960, 5952, 7440, 7936, 9920, 11904, 14880, 19840, 23808, 29760, 39680, 59520, 119040, 177907, 355814, 533721, 711628, 889535, 1067442, 1423256, 1779070, 2134884, 2668605, 2846512, 3558140, 4269768, 5337210, 5515117, 5693024, 7116280, 8539536, 10674420, 11030234, 11386048, 14232560, 16545351, 17079072, 21348840, 22060468, 22772096, 27575585, 28465120, 33090702, 34158144, 42697680, 44120936, 45544192, 55151170, 56930240, 66181404, 68316288, 82726755, 85395360, 88241872, 110302340, 113860480, 132362808, 136632576, 165453510, 170790720, 176483744, 220604680, 227720960, 264725616, 330907020, 341581440, 352967488, 441209360, 529451232, 661814040, 683162880, 705934976, 882418720, 1058902464, 1323628080, 1411869952, 1764837440, 2117804928, 2647256160, 3529674880, 4235609856, 5294512320, 7059349760, 10589024640, 21178049280]

約数ペア:

[(1, 21178049280), (2, 10589024640), (3, 7059349760), (4, 5294512320), (5, 4235609856), (6, 3529674880), (8, 2647256160), (10, 2117804928), (12, 1764837440), (15, 1411869952), (16, 1323628080), (20, 1058902464), (24, 882418720), (30, 705934976), (31, 683162880), (32, 661814040), (40, 529451232), (48, 441209360), (60, 352967488), (62, 341581440), (64, 330907020), (80, 264725616), (93, 227720960), (96, 220604680), (120, 176483744), (124, 170790720), (128, 165453510), (155, 136632576), (160, 132362808), (186, 113860480), (192, 110302340), (240, 88241872), (248, 85395360), (256, 82726755), (310, 68316288), (320, 66181404), (372, 56930240), (384, 55151170), (465, 45544192), (480, 44120936), (496, 42697680), (620, 34158144), (640, 33090702), (744, 28465120), (768, 27575585), (930, 22772096), (960, 22060468), (992, 21348840), (1240, 17079072), (1280, 16545351), (1488, 14232560), (1860, 11386048), (1920, 11030234), (1984, 10674420), (2480, 8539536), (2976, 7116280), (3720, 5693024), (3840, 5515117), (3968, 5337210), (4960, 4269768), (5952, 3558140), (7440, 2846512), (7936, 2668605), (9920, 2134884), (11904, 1779070), (14880, 1423256), (19840, 1067442), (23808, 889535), (29760, 711628), (39680, 533721), (59520, 355814), (119040, 177907)]