21498020880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79481}}^1$

素因数の和:79534

約数の個数: 240

約数和(自身を含む): 80896143744

約数和(自身を除く): 59398122864

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 49, 56, 60, 69, 70, 80, 84, 92, 98, 105, 112, 115, 120, 138, 140, 147, 161, 168, 184, 196, 210, 230, 240, 245, 276, 280, 294, 322, 336, 345, 368, 392, 420, 460, 483, 490, 552, 560, 588, 644, 690, 735, 784, 805, 840, 920, 966, 980, 1104, 1127, 1176, 1288, 1380, 1470, 1610, 1680, 1840, 1932, 1960, 2254, 2352, 2415, 2576, 2760, 2940, 3220, 3381, 3864, 3920, 4508, 4830, 5520, 5635, 5880, 6440, 6762, 7728, 9016, 9660, 11270, 11760, 12880, 13524, 16905, 18032, 19320, 22540, 27048, 33810, 38640, 45080, 54096, 67620, 79481, 90160, 135240, 158962, 238443, 270480, 317924, 397405, 476886, 556367, 635848, 794810, 953772, 1112734, 1192215, 1271696, 1589620, 1669101, 1828063, 1907544, 2225468, 2384430, 2781835, 3179240, 3338202, 3656126, 3815088, 3894569, 4450936, 4768860, 5484189, 5563670, 6358480, 6676404, 7312252, 7789138, 8345505, 8901872, 9140315, 9537720, 10968378, 11127340, 11683707, 12796441, 13352808, 14624504, 15578276, 16691010, 18280630, 19075440, 19472845, 21936756, 22254680, 23367414, 25592882, 26705616, 27420945, 29249008, 31156552, 33382020, 36561260, 38389323, 38945690, 43873512, 44509360, 46734828, 51185764, 54841890, 58418535, 62313104, 63982205, 66764040, 73122520, 76778646, 77891380, 87747024, 89575087, 93469656, 102371528, 109683780, 116837070, 127964410, 133528080, 146245040, 153557292, 155782760, 179150174, 186939312, 191946615, 204743056, 219367560, 233674140, 255928820, 268725261, 307114584, 311565520, 358300348, 383893230, 438735120, 447875435, 467348280, 511857640, 537450522, 614229168, 716600696, 767786460, 895750870, 934696560, 1023715280, 1074901044, 1343626305, 1433201392, 1535572920, 1791501740, 2149802088, 2687252610, 3071145840, 3583003480, 4299604176, 5374505220, 7166006960, 10749010440, 21498020880]

約数ペア:

[(1, 21498020880), (2, 10749010440), (3, 7166006960), (4, 5374505220), (5, 4299604176), (6, 3583003480), (7, 3071145840), (8, 2687252610), (10, 2149802088), (12, 1791501740), (14, 1535572920), (15, 1433201392), (16, 1343626305), (20, 1074901044), (21, 1023715280), (23, 934696560), (24, 895750870), (28, 767786460), (30, 716600696), (35, 614229168), (40, 537450522), (42, 511857640), (46, 467348280), (48, 447875435), (49, 438735120), (56, 383893230), (60, 358300348), (69, 311565520), (70, 307114584), (80, 268725261), (84, 255928820), (92, 233674140), (98, 219367560), (105, 204743056), (112, 191946615), (115, 186939312), (120, 179150174), (138, 155782760), (140, 153557292), (147, 146245040), (161, 133528080), (168, 127964410), (184, 116837070), (196, 109683780), (210, 102371528), (230, 93469656), (240, 89575087), (245, 87747024), (276, 77891380), (280, 76778646), (294, 73122520), (322, 66764040), (336, 63982205), (345, 62313104), (368, 58418535), (392, 54841890), (420, 51185764), (460, 46734828), (483, 44509360), (490, 43873512), (552, 38945690), (560, 38389323), (588, 36561260), (644, 33382020), (690, 31156552), (735, 29249008), (784, 27420945), (805, 26705616), (840, 25592882), (920, 23367414), (966, 22254680), (980, 21936756), (1104, 19472845), (1127, 19075440), (1176, 18280630), (1288, 16691010), (1380, 15578276), (1470, 14624504), (1610, 13352808), (1680, 12796441), (1840, 11683707), (1932, 11127340), (1960, 10968378), (2254, 9537720), (2352, 9140315), (2415, 8901872), (2576, 8345505), (2760, 7789138), (2940, 7312252), (3220, 6676404), (3381, 6358480), (3864, 5563670), (3920, 5484189), (4508, 4768860), (4830, 4450936), (5520, 3894569), (5635, 3815088), (5880, 3656126), (6440, 3338202), (6762, 3179240), (7728, 2781835), (9016, 2384430), (9660, 2225468), (11270, 1907544), (11760, 1828063), (12880, 1669101), (13524, 1589620), (16905, 1271696), (18032, 1192215), (19320, 1112734), (22540, 953772), (27048, 794810), (33810, 635848), (38640, 556367), (45080, 476886), (54096, 397405), (67620, 317924), (79481, 270480), (90160, 238443), (135240, 158962)]