21262500

素因数分解:

$2^2\times 3^5\times 5^5\times 7^1$

素因数の和:51

約数の個数: 216

約数和(自身を含む): 79619904

約数和(自身を除く): 58357404

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 81, 84, 90, 100, 105, 108, 125, 126, 135, 140, 150, 162, 175, 180, 189, 210, 225, 243, 250, 252, 270, 300, 315, 324, 350, 375, 378, 405, 420, 450, 486, 500, 525, 540, 567, 625, 630, 675, 700, 750, 756, 810, 875, 900, 945, 972, 1050, 1125, 1134, 1215, 1250, 1260, 1350, 1500, 1575, 1620, 1701, 1750, 1875, 1890, 2025, 2100, 2250, 2268, 2430, 2500, 2625, 2700, 2835, 3125, 3150, 3375, 3402, 3500, 3750, 3780, 4050, 4375, 4500, 4725, 4860, 5250, 5625, 5670, 6075, 6250, 6300, 6750, 6804, 7500, 7875, 8100, 8505, 8750, 9375, 9450, 10125, 10500, 11250, 11340, 12150, 12500, 13125, 13500, 14175, 15750, 16875, 17010, 17500, 18750, 18900, 20250, 21875, 22500, 23625, 24300, 26250, 28125, 28350, 30375, 31500, 33750, 34020, 37500, 39375, 40500, 42525, 43750, 47250, 50625, 52500, 56250, 56700, 60750, 65625, 67500, 70875, 78750, 84375, 85050, 87500, 94500, 101250, 112500, 118125, 121500, 131250, 141750, 151875, 157500, 168750, 170100, 196875, 202500, 212625, 236250, 253125, 262500, 283500, 303750, 337500, 354375, 393750, 425250, 472500, 506250, 590625, 607500, 708750, 759375, 787500, 850500, 1012500, 1063125, 1181250, 1417500, 1518750, 1771875, 2126250, 2362500, 3037500, 3543750, 4252500, 5315625, 7087500, 10631250, 21262500]

約数ペア:

[(1, 21262500), (2, 10631250), (3, 7087500), (4, 5315625), (5, 4252500), (6, 3543750), (7, 3037500), (9, 2362500), (10, 2126250), (12, 1771875), (14, 1518750), (15, 1417500), (18, 1181250), (20, 1063125), (21, 1012500), (25, 850500), (27, 787500), (28, 759375), (30, 708750), (35, 607500), (36, 590625), (42, 506250), (45, 472500), (50, 425250), (54, 393750), (60, 354375), (63, 337500), (70, 303750), (75, 283500), (81, 262500), (84, 253125), (90, 236250), (100, 212625), (105, 202500), (108, 196875), (125, 170100), (126, 168750), (135, 157500), (140, 151875), (150, 141750), (162, 131250), (175, 121500), (180, 118125), (189, 112500), (210, 101250), (225, 94500), (243, 87500), (250, 85050), (252, 84375), (270, 78750), (300, 70875), (315, 67500), (324, 65625), (350, 60750), (375, 56700), (378, 56250), (405, 52500), (420, 50625), (450, 47250), (486, 43750), (500, 42525), (525, 40500), (540, 39375), (567, 37500), (625, 34020), (630, 33750), (675, 31500), (700, 30375), (750, 28350), (756, 28125), (810, 26250), (875, 24300), (900, 23625), (945, 22500), (972, 21875), (1050, 20250), (1125, 18900), (1134, 18750), (1215, 17500), (1250, 17010), (1260, 16875), (1350, 15750), (1500, 14175), (1575, 13500), (1620, 13125), (1701, 12500), (1750, 12150), (1875, 11340), (1890, 11250), (2025, 10500), (2100, 10125), (2250, 9450), (2268, 9375), (2430, 8750), (2500, 8505), (2625, 8100), (2700, 7875), (2835, 7500), (3125, 6804), (3150, 6750), (3375, 6300), (3402, 6250), (3500, 6075), (3750, 5670), (3780, 5625), (4050, 5250), (4375, 4860), (4500, 4725)]