81558000

素因数分解:

$2^4\times 3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 240

約数和(自身を含む): 298748736

約数和(自身を除く): 217190736

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 25, 30, 36, 40, 45, 46, 48, 50, 60, 69, 72, 75, 80, 90, 92, 100, 115, 120, 125, 138, 144, 150, 180, 184, 197, 200, 207, 225, 230, 240, 250, 276, 300, 345, 360, 368, 375, 394, 400, 414, 450, 460, 500, 552, 575, 591, 600, 690, 720, 750, 788, 828, 900, 920, 985, 1000, 1035, 1104, 1125, 1150, 1182, 1200, 1380, 1500, 1576, 1656, 1725, 1773, 1800, 1840, 1970, 2000, 2070, 2250, 2300, 2364, 2760, 2875, 2955, 3000, 3152, 3312, 3450, 3546, 3600, 3940, 4140, 4500, 4531, 4600, 4728, 4925, 5175, 5520, 5750, 5910, 6000, 6900, 7092, 7880, 8280, 8625, 8865, 9000, 9062, 9200, 9456, 9850, 10350, 11500, 11820, 13593, 13800, 14184, 14775, 15760, 16560, 17250, 17730, 18000, 18124, 19700, 20700, 22655, 23000, 23640, 24625, 25875, 27186, 27600, 28368, 29550, 34500, 35460, 36248, 39400, 40779, 41400, 44325, 45310, 46000, 47280, 49250, 51750, 54372, 59100, 67965, 69000, 70920, 72496, 73875, 78800, 81558, 82800, 88650, 90620, 98500, 103500, 108744, 113275, 118200, 135930, 138000, 141840, 147750, 163116, 177300, 181240, 197000, 203895, 207000, 217488, 221625, 226550, 236400, 271860, 295500, 326232, 339825, 354600, 362480, 394000, 407790, 414000, 443250, 453100, 543720, 566375, 591000, 652464, 679650, 709200, 815580, 886500, 906200, 1019475, 1087440, 1132750, 1182000, 1359300, 1631160, 1699125, 1773000, 1812400, 2038950, 2265500, 2718600, 3262320, 3398250, 3546000, 4077900, 4531000, 5097375, 5437200, 6796500, 8155800, 9062000, 10194750, 13593000, 16311600, 20389500, 27186000, 40779000, 81558000]

約数ペア:

[(1, 81558000), (2, 40779000), (3, 27186000), (4, 20389500), (5, 16311600), (6, 13593000), (8, 10194750), (9, 9062000), (10, 8155800), (12, 6796500), (15, 5437200), (16, 5097375), (18, 4531000), (20, 4077900), (23, 3546000), (24, 3398250), (25, 3262320), (30, 2718600), (36, 2265500), (40, 2038950), (45, 1812400), (46, 1773000), (48, 1699125), (50, 1631160), (60, 1359300), (69, 1182000), (72, 1132750), (75, 1087440), (80, 1019475), (90, 906200), (92, 886500), (100, 815580), (115, 709200), (120, 679650), (125, 652464), (138, 591000), (144, 566375), (150, 543720), (180, 453100), (184, 443250), (197, 414000), (200, 407790), (207, 394000), (225, 362480), (230, 354600), (240, 339825), (250, 326232), (276, 295500), (300, 271860), (345, 236400), (360, 226550), (368, 221625), (375, 217488), (394, 207000), (400, 203895), (414, 197000), (450, 181240), (460, 177300), (500, 163116), (552, 147750), (575, 141840), (591, 138000), (600, 135930), (690, 118200), (720, 113275), (750, 108744), (788, 103500), (828, 98500), (900, 90620), (920, 88650), (985, 82800), (1000, 81558), (1035, 78800), (1104, 73875), (1125, 72496), (1150, 70920), (1182, 69000), (1200, 67965), (1380, 59100), (1500, 54372), (1576, 51750), (1656, 49250), (1725, 47280), (1773, 46000), (1800, 45310), (1840, 44325), (1970, 41400), (2000, 40779), (2070, 39400), (2250, 36248), (2300, 35460), (2364, 34500), (2760, 29550), (2875, 28368), (2955, 27600), (3000, 27186), (3152, 25875), (3312, 24625), (3450, 23640), (3546, 23000), (3600, 22655), (3940, 20700), (4140, 19700), (4500, 18124), (4531, 18000), (4600, 17730), (4728, 17250), (4925, 16560), (5175, 15760), (5520, 14775), (5750, 14184), (5910, 13800), (6000, 13593), (6900, 11820), (7092, 11500), (7880, 10350), (8280, 9850), (8625, 9456), (8865, 9200), (9000, 9062)]