1638000

素因数分解:

$2^4\times 3^2\times 5^3\times 7^1\times {\mathrm{13}}^1$

素因数の和:49

約数の個数: 240

約数和(自身を含む): 7041216

約数和(自身を除く): 5403216

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 25, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 50, 52, 56, 60, 63, 65, 70, 72, 75, 78, 80, 84, 90, 91, 100, 104, 105, 112, 117, 120, 125, 126, 130, 140, 144, 150, 156, 168, 175, 180, 182, 195, 200, 208, 210, 225, 234, 240, 250, 252, 260, 273, 280, 300, 312, 315, 325, 336, 350, 360, 364, 375, 390, 400, 420, 450, 455, 468, 500, 504, 520, 525, 546, 560, 585, 600, 624, 630, 650, 700, 720, 728, 750, 780, 819, 840, 875, 900, 910, 936, 975, 1000, 1008, 1040, 1050, 1092, 1125, 1170, 1200, 1260, 1300, 1365, 1400, 1456, 1500, 1560, 1575, 1625, 1638, 1680, 1750, 1800, 1820, 1872, 1950, 2000, 2100, 2184, 2250, 2275, 2340, 2520, 2600, 2625, 2730, 2800, 2925, 3000, 3120, 3150, 3250, 3276, 3500, 3600, 3640, 3900, 4095, 4200, 4368, 4500, 4550, 4680, 4875, 5040, 5200, 5250, 5460, 5850, 6000, 6300, 6500, 6552, 6825, 7000, 7280, 7800, 7875, 8190, 8400, 9000, 9100, 9360, 9750, 10500, 10920, 11375, 11700, 12600, 13000, 13104, 13650, 14000, 14625, 15600, 15750, 16380, 18000, 18200, 19500, 20475, 21000, 21840, 22750, 23400, 25200, 26000, 27300, 29250, 31500, 32760, 34125, 36400, 39000, 40950, 42000, 45500, 46800, 54600, 58500, 63000, 65520, 68250, 78000, 81900, 91000, 102375, 109200, 117000, 126000, 136500, 163800, 182000, 204750, 234000, 273000, 327600, 409500, 546000, 819000, 1638000]

約数ペア:

[(1, 1638000), (2, 819000), (3, 546000), (4, 409500), (5, 327600), (6, 273000), (7, 234000), (8, 204750), (9, 182000), (10, 163800), (12, 136500), (13, 126000), (14, 117000), (15, 109200), (16, 102375), (18, 91000), (20, 81900), (21, 78000), (24, 68250), (25, 65520), (26, 63000), (28, 58500), (30, 54600), (35, 46800), (36, 45500), (39, 42000), (40, 40950), (42, 39000), (45, 36400), (48, 34125), (50, 32760), (52, 31500), (56, 29250), (60, 27300), (63, 26000), (65, 25200), (70, 23400), (72, 22750), (75, 21840), (78, 21000), (80, 20475), (84, 19500), (90, 18200), (91, 18000), (100, 16380), (104, 15750), (105, 15600), (112, 14625), (117, 14000), (120, 13650), (125, 13104), (126, 13000), (130, 12600), (140, 11700), (144, 11375), (150, 10920), (156, 10500), (168, 9750), (175, 9360), (180, 9100), (182, 9000), (195, 8400), (200, 8190), (208, 7875), (210, 7800), (225, 7280), (234, 7000), (240, 6825), (250, 6552), (252, 6500), (260, 6300), (273, 6000), (280, 5850), (300, 5460), (312, 5250), (315, 5200), (325, 5040), (336, 4875), (350, 4680), (360, 4550), (364, 4500), (375, 4368), (390, 4200), (400, 4095), (420, 3900), (450, 3640), (455, 3600), (468, 3500), (500, 3276), (504, 3250), (520, 3150), (525, 3120), (546, 3000), (560, 2925), (585, 2800), (600, 2730), (624, 2625), (630, 2600), (650, 2520), (700, 2340), (720, 2275), (728, 2250), (750, 2184), (780, 2100), (819, 2000), (840, 1950), (875, 1872), (900, 1820), (910, 1800), (936, 1750), (975, 1680), (1000, 1638), (1008, 1625), (1040, 1575), (1050, 1560), (1092, 1500), (1125, 1456), (1170, 1400), (1200, 1365), (1260, 1300)]