20979000

素因数分解:

$2^3\times 3^4\times 5^3\times 7^1\times {\mathrm{37}}^1$

素因数の和:77

約数の個数: 320

約数和(自身を含む): 86074560

約数和(自身を除く): 65095560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 27, 28, 30, 35, 36, 37, 40, 42, 45, 50, 54, 56, 60, 63, 70, 72, 74, 75, 81, 84, 90, 100, 105, 108, 111, 120, 125, 126, 135, 140, 148, 150, 162, 168, 175, 180, 185, 189, 200, 210, 216, 222, 225, 250, 252, 259, 270, 280, 296, 300, 315, 324, 333, 350, 360, 370, 375, 378, 405, 420, 444, 450, 500, 504, 518, 525, 540, 555, 567, 600, 630, 648, 666, 675, 700, 740, 750, 756, 777, 810, 840, 875, 888, 900, 925, 945, 999, 1000, 1036, 1050, 1080, 1110, 1125, 1134, 1260, 1295, 1332, 1350, 1400, 1480, 1500, 1512, 1554, 1575, 1620, 1665, 1750, 1800, 1850, 1890, 1998, 2025, 2072, 2100, 2220, 2250, 2268, 2331, 2520, 2590, 2625, 2664, 2700, 2775, 2835, 2997, 3000, 3108, 3150, 3240, 3330, 3375, 3500, 3700, 3780, 3885, 3996, 4050, 4200, 4440, 4500, 4536, 4625, 4662, 4725, 4995, 5180, 5250, 5400, 5550, 5670, 5994, 6216, 6300, 6475, 6660, 6750, 6993, 7000, 7400, 7560, 7770, 7875, 7992, 8100, 8325, 9000, 9250, 9324, 9450, 9990, 10125, 10360, 10500, 11100, 11340, 11655, 11988, 12600, 12950, 13320, 13500, 13875, 13986, 14175, 14985, 15540, 15750, 16200, 16650, 18500, 18648, 18900, 19425, 19980, 20250, 20979, 21000, 22200, 22680, 23310, 23625, 23976, 24975, 25900, 27000, 27750, 27972, 28350, 29970, 31080, 31500, 32375, 33300, 34965, 37000, 37800, 38850, 39960, 40500, 41625, 41958, 46620, 47250, 49950, 51800, 55500, 55944, 56700, 58275, 59940, 63000, 64750, 66600, 69930, 70875, 74925, 77700, 81000, 83250, 83916, 93240, 94500, 97125, 99900, 104895, 111000, 113400, 116550, 119880, 124875, 129500, 139860, 141750, 149850, 155400, 166500, 167832, 174825, 189000, 194250, 199800, 209790, 233100, 249750, 259000, 279720, 283500, 291375, 299700, 333000, 349650, 374625, 388500, 419580, 466200, 499500, 524475, 567000, 582750, 599400, 699300, 749250, 777000, 839160, 874125, 999000, 1048950, 1165500, 1398600, 1498500, 1748250, 2097900, 2331000, 2622375, 2997000, 3496500, 4195800, 5244750, 6993000, 10489500, 20979000]

約数ペア:

[(1, 20979000), (2, 10489500), (3, 6993000), (4, 5244750), (5, 4195800), (6, 3496500), (7, 2997000), (8, 2622375), (9, 2331000), (10, 2097900), (12, 1748250), (14, 1498500), (15, 1398600), (18, 1165500), (20, 1048950), (21, 999000), (24, 874125), (25, 839160), (27, 777000), (28, 749250), (30, 699300), (35, 599400), (36, 582750), (37, 567000), (40, 524475), (42, 499500), (45, 466200), (50, 419580), (54, 388500), (56, 374625), (60, 349650), (63, 333000), (70, 299700), (72, 291375), (74, 283500), (75, 279720), (81, 259000), (84, 249750), (90, 233100), (100, 209790), (105, 199800), (108, 194250), (111, 189000), (120, 174825), (125, 167832), (126, 166500), (135, 155400), (140, 149850), (148, 141750), (150, 139860), (162, 129500), (168, 124875), (175, 119880), (180, 116550), (185, 113400), (189, 111000), (200, 104895), (210, 99900), (216, 97125), (222, 94500), (225, 93240), (250, 83916), (252, 83250), (259, 81000), (270, 77700), (280, 74925), (296, 70875), (300, 69930), (315, 66600), (324, 64750), (333, 63000), (350, 59940), (360, 58275), (370, 56700), (375, 55944), (378, 55500), (405, 51800), (420, 49950), (444, 47250), (450, 46620), (500, 41958), (504, 41625), (518, 40500), (525, 39960), (540, 38850), (555, 37800), (567, 37000), (600, 34965), (630, 33300), (648, 32375), (666, 31500), (675, 31080), (700, 29970), (740, 28350), (750, 27972), (756, 27750), (777, 27000), (810, 25900), (840, 24975), (875, 23976), (888, 23625), (900, 23310), (925, 22680), (945, 22200), (999, 21000), (1000, 20979), (1036, 20250), (1050, 19980), (1080, 19425), (1110, 18900), (1125, 18648), (1134, 18500), (1260, 16650), (1295, 16200), (1332, 15750), (1350, 15540), (1400, 14985), (1480, 14175), (1500, 13986), (1512, 13875), (1554, 13500), (1575, 13320), (1620, 12950), (1665, 12600), (1750, 11988), (1800, 11655), (1850, 11340), (1890, 11100), (1998, 10500), (2025, 10360), (2072, 10125), (2100, 9990), (2220, 9450), (2250, 9324), (2268, 9250), (2331, 9000), (2520, 8325), (2590, 8100), (2625, 7992), (2664, 7875), (2700, 7770), (2775, 7560), (2835, 7400), (2997, 7000), (3000, 6993), (3108, 6750), (3150, 6660), (3240, 6475), (3330, 6300), (3375, 6216), (3500, 5994), (3700, 5670), (3780, 5550), (3885, 5400), (3996, 5250), (4050, 5180), (4200, 4995), (4440, 4725), (4500, 4662), (4536, 4625)]