19882800

素因数分解:

$2^4\times 3^3\times 5^2\times 7^1\times {\mathrm{263}}^1$

素因数の和:297

約数の個数: 240

約数和(自身を含む): 81185280

約数和(自身を除く): 61302480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 35, 36, 40, 42, 45, 48, 50, 54, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 108, 112, 120, 126, 135, 140, 144, 150, 168, 175, 180, 189, 200, 210, 216, 225, 240, 252, 263, 270, 280, 300, 315, 336, 350, 360, 378, 400, 420, 432, 450, 504, 525, 526, 540, 560, 600, 630, 675, 700, 720, 756, 789, 840, 900, 945, 1008, 1050, 1052, 1080, 1200, 1260, 1315, 1350, 1400, 1512, 1575, 1578, 1680, 1800, 1841, 1890, 2100, 2104, 2160, 2367, 2520, 2630, 2700, 2800, 3024, 3150, 3156, 3600, 3682, 3780, 3945, 4200, 4208, 4725, 4734, 5040, 5260, 5400, 5523, 6300, 6312, 6575, 7101, 7364, 7560, 7890, 8400, 9205, 9450, 9468, 10520, 10800, 11046, 11835, 12600, 12624, 13150, 14202, 14728, 15120, 15780, 16569, 18410, 18900, 18936, 19725, 21040, 22092, 23670, 25200, 26300, 27615, 28404, 29456, 31560, 33138, 35505, 36820, 37800, 37872, 39450, 44184, 46025, 47340, 49707, 52600, 55230, 56808, 59175, 63120, 66276, 71010, 73640, 75600, 78900, 82845, 88368, 92050, 94680, 99414, 105200, 110460, 113616, 118350, 132552, 138075, 142020, 147280, 157800, 165690, 177525, 184100, 189360, 198828, 220920, 236700, 248535, 265104, 276150, 284040, 315600, 331380, 355050, 368200, 397656, 414225, 441840, 473400, 497070, 552300, 568080, 662760, 710100, 736400, 795312, 828450, 946800, 994140, 1104600, 1242675, 1325520, 1420200, 1656900, 1988280, 2209200, 2485350, 2840400, 3313800, 3976560, 4970700, 6627600, 9941400, 19882800]

約数ペア:

[(1, 19882800), (2, 9941400), (3, 6627600), (4, 4970700), (5, 3976560), (6, 3313800), (7, 2840400), (8, 2485350), (9, 2209200), (10, 1988280), (12, 1656900), (14, 1420200), (15, 1325520), (16, 1242675), (18, 1104600), (20, 994140), (21, 946800), (24, 828450), (25, 795312), (27, 736400), (28, 710100), (30, 662760), (35, 568080), (36, 552300), (40, 497070), (42, 473400), (45, 441840), (48, 414225), (50, 397656), (54, 368200), (56, 355050), (60, 331380), (63, 315600), (70, 284040), (72, 276150), (75, 265104), (80, 248535), (84, 236700), (90, 220920), (100, 198828), (105, 189360), (108, 184100), (112, 177525), (120, 165690), (126, 157800), (135, 147280), (140, 142020), (144, 138075), (150, 132552), (168, 118350), (175, 113616), (180, 110460), (189, 105200), (200, 99414), (210, 94680), (216, 92050), (225, 88368), (240, 82845), (252, 78900), (263, 75600), (270, 73640), (280, 71010), (300, 66276), (315, 63120), (336, 59175), (350, 56808), (360, 55230), (378, 52600), (400, 49707), (420, 47340), (432, 46025), (450, 44184), (504, 39450), (525, 37872), (526, 37800), (540, 36820), (560, 35505), (600, 33138), (630, 31560), (675, 29456), (700, 28404), (720, 27615), (756, 26300), (789, 25200), (840, 23670), (900, 22092), (945, 21040), (1008, 19725), (1050, 18936), (1052, 18900), (1080, 18410), (1200, 16569), (1260, 15780), (1315, 15120), (1350, 14728), (1400, 14202), (1512, 13150), (1575, 12624), (1578, 12600), (1680, 11835), (1800, 11046), (1841, 10800), (1890, 10520), (2100, 9468), (2104, 9450), (2160, 9205), (2367, 8400), (2520, 7890), (2630, 7560), (2700, 7364), (2800, 7101), (3024, 6575), (3150, 6312), (3156, 6300), (3600, 5523), (3682, 5400), (3780, 5260), (3945, 5040), (4200, 4734), (4208, 4725)]