19740000

素因数分解:

$2^5\times 3^1\times 5^4\times 7^1\times {\mathrm{47}}^1$

素因数の和:87

約数の個数: 240

約数和(自身を含む): 75575808

約数和(自身を除く): 55835808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 47, 48, 50, 56, 60, 70, 75, 80, 84, 94, 96, 100, 105, 112, 120, 125, 140, 141, 150, 160, 168, 175, 188, 200, 210, 224, 235, 240, 250, 280, 282, 300, 329, 336, 350, 375, 376, 400, 420, 470, 480, 500, 525, 560, 564, 600, 625, 658, 672, 700, 705, 750, 752, 800, 840, 875, 940, 987, 1000, 1050, 1120, 1128, 1175, 1200, 1250, 1316, 1400, 1410, 1500, 1504, 1645, 1680, 1750, 1875, 1880, 1974, 2000, 2100, 2256, 2350, 2400, 2500, 2625, 2632, 2800, 2820, 3000, 3290, 3360, 3500, 3525, 3750, 3760, 3948, 4000, 4200, 4375, 4512, 4700, 4935, 5000, 5250, 5264, 5600, 5640, 5875, 6000, 6580, 7000, 7050, 7500, 7520, 7896, 8225, 8400, 8750, 9400, 9870, 10000, 10500, 10528, 11280, 11750, 12000, 13125, 13160, 14000, 14100, 15000, 15792, 16450, 16800, 17500, 17625, 18800, 19740, 20000, 21000, 22560, 23500, 24675, 26250, 26320, 28000, 28200, 29375, 30000, 31584, 32900, 35000, 35250, 37600, 39480, 41125, 42000, 47000, 49350, 52500, 52640, 56400, 58750, 60000, 65800, 70000, 70500, 78960, 82250, 84000, 88125, 94000, 98700, 105000, 112800, 117500, 123375, 131600, 140000, 141000, 157920, 164500, 176250, 188000, 197400, 205625, 210000, 235000, 246750, 263200, 282000, 329000, 352500, 394800, 411250, 420000, 470000, 493500, 564000, 616875, 658000, 705000, 789600, 822500, 940000, 987000, 1233750, 1316000, 1410000, 1645000, 1974000, 2467500, 2820000, 3290000, 3948000, 4935000, 6580000, 9870000, 19740000]

約数ペア:

[(1, 19740000), (2, 9870000), (3, 6580000), (4, 4935000), (5, 3948000), (6, 3290000), (7, 2820000), (8, 2467500), (10, 1974000), (12, 1645000), (14, 1410000), (15, 1316000), (16, 1233750), (20, 987000), (21, 940000), (24, 822500), (25, 789600), (28, 705000), (30, 658000), (32, 616875), (35, 564000), (40, 493500), (42, 470000), (47, 420000), (48, 411250), (50, 394800), (56, 352500), (60, 329000), (70, 282000), (75, 263200), (80, 246750), (84, 235000), (94, 210000), (96, 205625), (100, 197400), (105, 188000), (112, 176250), (120, 164500), (125, 157920), (140, 141000), (141, 140000), (150, 131600), (160, 123375), (168, 117500), (175, 112800), (188, 105000), (200, 98700), (210, 94000), (224, 88125), (235, 84000), (240, 82250), (250, 78960), (280, 70500), (282, 70000), (300, 65800), (329, 60000), (336, 58750), (350, 56400), (375, 52640), (376, 52500), (400, 49350), (420, 47000), (470, 42000), (480, 41125), (500, 39480), (525, 37600), (560, 35250), (564, 35000), (600, 32900), (625, 31584), (658, 30000), (672, 29375), (700, 28200), (705, 28000), (750, 26320), (752, 26250), (800, 24675), (840, 23500), (875, 22560), (940, 21000), (987, 20000), (1000, 19740), (1050, 18800), (1120, 17625), (1128, 17500), (1175, 16800), (1200, 16450), (1250, 15792), (1316, 15000), (1400, 14100), (1410, 14000), (1500, 13160), (1504, 13125), (1645, 12000), (1680, 11750), (1750, 11280), (1875, 10528), (1880, 10500), (1974, 10000), (2000, 9870), (2100, 9400), (2256, 8750), (2350, 8400), (2400, 8225), (2500, 7896), (2625, 7520), (2632, 7500), (2800, 7050), (2820, 7000), (3000, 6580), (3290, 6000), (3360, 5875), (3500, 5640), (3525, 5600), (3750, 5264), (3760, 5250), (3948, 5000), (4000, 4935), (4200, 4700), (4375, 4512)]