20921389440

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81929}}^1$

素因数の和:81977

約数の個数: 256

約数和(自身を含む): 80225856000

約数和(自身を除く): 59304466560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 64, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 128, 133, 140, 152, 160, 168, 190, 192, 210, 224, 228, 240, 266, 280, 285, 304, 320, 336, 380, 384, 399, 420, 448, 456, 480, 532, 560, 570, 608, 640, 665, 672, 760, 798, 840, 896, 912, 960, 1064, 1120, 1140, 1216, 1330, 1344, 1520, 1596, 1680, 1824, 1920, 1995, 2128, 2240, 2280, 2432, 2660, 2688, 3040, 3192, 3360, 3648, 3990, 4256, 4480, 4560, 5320, 6080, 6384, 6720, 7296, 7980, 8512, 9120, 10640, 12160, 12768, 13440, 15960, 17024, 18240, 21280, 25536, 31920, 36480, 42560, 51072, 63840, 81929, 85120, 127680, 163858, 245787, 255360, 327716, 409645, 491574, 573503, 655432, 819290, 983148, 1147006, 1228935, 1310864, 1556651, 1638580, 1720509, 1966296, 2294012, 2457870, 2621728, 2867515, 3113302, 3277160, 3441018, 3932592, 4588024, 4669953, 4915740, 5243456, 5735030, 6226604, 6554320, 6882036, 7783255, 7865184, 8602545, 9176048, 9339906, 9831480, 10486912, 10896557, 11470060, 12453208, 13108640, 13764072, 15566510, 15730368, 17205090, 18352096, 18679812, 19662960, 21793114, 22940120, 23349765, 24906416, 26217280, 27528144, 31133020, 31460736, 32689671, 34410180, 36704192, 37359624, 39325920, 43586228, 45880240, 46699530, 49812832, 52434560, 54482785, 55056288, 62266040, 65379342, 68820360, 73408384, 74719248, 78651840, 87172456, 91760480, 93399060, 99625664, 108965570, 110112576, 124532080, 130758684, 137640720, 149438496, 157303680, 163448355, 174344912, 183520960, 186798120, 199251328, 217931140, 220225152, 249064160, 261517368, 275281440, 298876992, 326896710, 348689824, 367041920, 373596240, 435862280, 498128320, 523034736, 550562880, 597753984, 653793420, 697379648, 747192480, 871724560, 996256640, 1046069472, 1101125760, 1307586840, 1394759296, 1494384960, 1743449120, 2092138944, 2615173680, 2988769920, 3486898240, 4184277888, 5230347360, 6973796480, 10460694720, 20921389440]

約数ペア:

[(1, 20921389440), (2, 10460694720), (3, 6973796480), (4, 5230347360), (5, 4184277888), (6, 3486898240), (7, 2988769920), (8, 2615173680), (10, 2092138944), (12, 1743449120), (14, 1494384960), (15, 1394759296), (16, 1307586840), (19, 1101125760), (20, 1046069472), (21, 996256640), (24, 871724560), (28, 747192480), (30, 697379648), (32, 653793420), (35, 597753984), (38, 550562880), (40, 523034736), (42, 498128320), (48, 435862280), (56, 373596240), (57, 367041920), (60, 348689824), (64, 326896710), (70, 298876992), (76, 275281440), (80, 261517368), (84, 249064160), (95, 220225152), (96, 217931140), (105, 199251328), (112, 186798120), (114, 183520960), (120, 174344912), (128, 163448355), (133, 157303680), (140, 149438496), (152, 137640720), (160, 130758684), (168, 124532080), (190, 110112576), (192, 108965570), (210, 99625664), (224, 93399060), (228, 91760480), (240, 87172456), (266, 78651840), (280, 74719248), (285, 73408384), (304, 68820360), (320, 65379342), (336, 62266040), (380, 55056288), (384, 54482785), (399, 52434560), (420, 49812832), (448, 46699530), (456, 45880240), (480, 43586228), (532, 39325920), (560, 37359624), (570, 36704192), (608, 34410180), (640, 32689671), (665, 31460736), (672, 31133020), (760, 27528144), (798, 26217280), (840, 24906416), (896, 23349765), (912, 22940120), (960, 21793114), (1064, 19662960), (1120, 18679812), (1140, 18352096), (1216, 17205090), (1330, 15730368), (1344, 15566510), (1520, 13764072), (1596, 13108640), (1680, 12453208), (1824, 11470060), (1920, 10896557), (1995, 10486912), (2128, 9831480), (2240, 9339906), (2280, 9176048), (2432, 8602545), (2660, 7865184), (2688, 7783255), (3040, 6882036), (3192, 6554320), (3360, 6226604), (3648, 5735030), (3990, 5243456), (4256, 4915740), (4480, 4669953), (4560, 4588024), (5320, 3932592), (6080, 3441018), (6384, 3277160), (6720, 3113302), (7296, 2867515), (7980, 2621728), (8512, 2457870), (9120, 2294012), (10640, 1966296), (12160, 1720509), (12768, 1638580), (13440, 1556651), (15960, 1310864), (17024, 1228935), (18240, 1147006), (21280, 983148), (25536, 819290), (31920, 655432), (36480, 573503), (42560, 491574), (51072, 409645), (63840, 327716), (81929, 255360), (85120, 245787), (127680, 163858)]