21154415520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{647}}^1$

素因数の和:972

約数の個数: 384

約数和(自身を含む): 78632902656

約数和(自身を除く): 57478487136

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 37, 40, 42, 48, 56, 60, 70, 74, 80, 84, 96, 105, 111, 112, 120, 140, 148, 160, 168, 185, 210, 222, 224, 240, 259, 263, 280, 296, 336, 370, 420, 444, 480, 518, 526, 555, 560, 592, 647, 672, 740, 777, 789, 840, 888, 1036, 1052, 1110, 1120, 1184, 1294, 1295, 1315, 1480, 1554, 1578, 1680, 1776, 1841, 1941, 2072, 2104, 2220, 2588, 2590, 2630, 2960, 3108, 3156, 3235, 3360, 3552, 3682, 3882, 3885, 3945, 4144, 4208, 4440, 4529, 5176, 5180, 5260, 5523, 5920, 6216, 6312, 6470, 7364, 7764, 7770, 7890, 8288, 8416, 8880, 9058, 9205, 9705, 9731, 10352, 10360, 10520, 11046, 12432, 12624, 12940, 13587, 14728, 15528, 15540, 15780, 17760, 18116, 18410, 19410, 19462, 20704, 20720, 21040, 22092, 22645, 23939, 24864, 25248, 25880, 27174, 27615, 29193, 29456, 31056, 31080, 31560, 36232, 36820, 38820, 38924, 41440, 42080, 44184, 45290, 47878, 48655, 51760, 54348, 55230, 58386, 58912, 62112, 62160, 63120, 67935, 68117, 71817, 72464, 73640, 77640, 77848, 88368, 90580, 95756, 97310, 103520, 108696, 110460, 116772, 119695, 124320, 126240, 135870, 136234, 143634, 144928, 145965, 147280, 155280, 155696, 167573, 170161, 176736, 181160, 191512, 194620, 204351, 217392, 220920, 233544, 239390, 271740, 272468, 287268, 291930, 294560, 310560, 311392, 335146, 340322, 340585, 359085, 362320, 383024, 389240, 408702, 434784, 441840, 467088, 478780, 502719, 510483, 543480, 544936, 574536, 583860, 670292, 680644, 681170, 718170, 724640, 766048, 778480, 817404, 837865, 850805, 883680, 934176, 957560, 1005438, 1020966, 1021755, 1086960, 1089872, 1149072, 1167720, 1191127, 1340584, 1361288, 1362340, 1436340, 1556960, 1634808, 1675730, 1701610, 1915120, 2010876, 2041932, 2043510, 2173920, 2179744, 2298144, 2335440, 2382254, 2513595, 2552415, 2681168, 2722576, 2724680, 2872680, 3269616, 3351460, 3403220, 3573381, 3830240, 4021752, 4083864, 4087020, 4670880, 4764508, 5027190, 5104830, 5362336, 5445152, 5449360, 5745360, 5955635, 6295957, 6539232, 6702920, 6806440, 7146762, 8043504, 8167728, 8174040, 9529016, 10054380, 10209660, 10898720, 11490720, 11911270, 12591914, 13405840, 13612880, 14293524, 16087008, 16335456, 16348080, 17866905, 18887871, 19058032, 20108760, 20419320, 23822540, 25183828, 26811680, 27225760, 28587048, 31479785, 32696160, 35733810, 37775742, 38116064, 40217520, 40838640, 44071699, 47645080, 50367656, 57174096, 62959570, 71467620, 75551484, 80435040, 81677280, 88143398, 94439355, 95290160, 100735312, 114348192, 125919140, 132215097, 142935240, 151102968, 176286796, 188878710, 190580320, 201470624, 220358495, 251838280, 264430194, 285870480, 302205936, 352573592, 377757420, 440716990, 503676560, 528860388, 571740960, 604411872, 661075485, 705147184, 755514840, 881433980, 1007353120, 1057720776, 1322150970, 1410294368, 1511029680, 1762867960, 2115441552, 2644301940, 3022059360, 3525735920, 4230883104, 5288603880, 7051471840, 10577207760, 21154415520]

約数ペア:

[(1, 21154415520), (2, 10577207760), (3, 7051471840), (4, 5288603880), (5, 4230883104), (6, 3525735920), (7, 3022059360), (8, 2644301940), (10, 2115441552), (12, 1762867960), (14, 1511029680), (15, 1410294368), (16, 1322150970), (20, 1057720776), (21, 1007353120), (24, 881433980), (28, 755514840), (30, 705147184), (32, 661075485), (35, 604411872), (37, 571740960), (40, 528860388), (42, 503676560), (48, 440716990), (56, 377757420), (60, 352573592), (70, 302205936), (74, 285870480), (80, 264430194), (84, 251838280), (96, 220358495), (105, 201470624), (111, 190580320), (112, 188878710), (120, 176286796), (140, 151102968), (148, 142935240), (160, 132215097), (168, 125919140), (185, 114348192), (210, 100735312), (222, 95290160), (224, 94439355), (240, 88143398), (259, 81677280), (263, 80435040), (280, 75551484), (296, 71467620), (336, 62959570), (370, 57174096), (420, 50367656), (444, 47645080), (480, 44071699), (518, 40838640), (526, 40217520), (555, 38116064), (560, 37775742), (592, 35733810), (647, 32696160), (672, 31479785), (740, 28587048), (777, 27225760), (789, 26811680), (840, 25183828), (888, 23822540), (1036, 20419320), (1052, 20108760), (1110, 19058032), (1120, 18887871), (1184, 17866905), (1294, 16348080), (1295, 16335456), (1315, 16087008), (1480, 14293524), (1554, 13612880), (1578, 13405840), (1680, 12591914), (1776, 11911270), (1841, 11490720), (1941, 10898720), (2072, 10209660), (2104, 10054380), (2220, 9529016), (2588, 8174040), (2590, 8167728), (2630, 8043504), (2960, 7146762), (3108, 6806440), (3156, 6702920), (3235, 6539232), (3360, 6295957), (3552, 5955635), (3682, 5745360), (3882, 5449360), (3885, 5445152), (3945, 5362336), (4144, 5104830), (4208, 5027190), (4440, 4764508), (4529, 4670880), (5176, 4087020), (5180, 4083864), (5260, 4021752), (5523, 3830240), (5920, 3573381), (6216, 3403220), (6312, 3351460), (6470, 3269616), (7364, 2872680), (7764, 2724680), (7770, 2722576), (7890, 2681168), (8288, 2552415), (8416, 2513595), (8880, 2382254), (9058, 2335440), (9205, 2298144), (9705, 2179744), (9731, 2173920), (10352, 2043510), (10360, 2041932), (10520, 2010876), (11046, 1915120), (12432, 1701610), (12624, 1675730), (12940, 1634808), (13587, 1556960), (14728, 1436340), (15528, 1362340), (15540, 1361288), (15780, 1340584), (17760, 1191127), (18116, 1167720), (18410, 1149072), (19410, 1089872), (19462, 1086960), (20704, 1021755), (20720, 1020966), (21040, 1005438), (22092, 957560), (22645, 934176), (23939, 883680), (24864, 850805), (25248, 837865), (25880, 817404), (27174, 778480), (27615, 766048), (29193, 724640), (29456, 718170), (31056, 681170), (31080, 680644), (31560, 670292), (36232, 583860), (36820, 574536), (38820, 544936), (38924, 543480), (41440, 510483), (42080, 502719), (44184, 478780), (45290, 467088), (47878, 441840), (48655, 434784), (51760, 408702), (54348, 389240), (55230, 383024), (58386, 362320), (58912, 359085), (62112, 340585), (62160, 340322), (63120, 335146), (67935, 311392), (68117, 310560), (71817, 294560), (72464, 291930), (73640, 287268), (77640, 272468), (77848, 271740), (88368, 239390), (90580, 233544), (95756, 220920), (97310, 217392), (103520, 204351), (108696, 194620), (110460, 191512), (116772, 181160), (119695, 176736), (124320, 170161), (126240, 167573), (135870, 155696), (136234, 155280), (143634, 147280), (144928, 145965)]