19807200

素因数分解:

$2^5\times 3^3\times 5^2\times 7^1\times {\mathrm{131}}^1$

素因数の和:167

約数の個数: 288

約数和(自身を含む): 82494720

約数和(自身を除く): 62687520

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, 32, 35, 36, 40, 42, 45, 48, 50, 54, 56, 60, 63, 70, 72, 75, 80, 84, 90, 96, 100, 105, 108, 112, 120, 126, 131, 135, 140, 144, 150, 160, 168, 175, 180, 189, 200, 210, 216, 224, 225, 240, 252, 262, 270, 280, 288, 300, 315, 336, 350, 360, 378, 393, 400, 420, 432, 450, 480, 504, 524, 525, 540, 560, 600, 630, 655, 672, 675, 700, 720, 756, 786, 800, 840, 864, 900, 917, 945, 1008, 1048, 1050, 1080, 1120, 1179, 1200, 1260, 1310, 1350, 1400, 1440, 1512, 1572, 1575, 1680, 1800, 1834, 1890, 1965, 2016, 2096, 2100, 2160, 2358, 2400, 2520, 2620, 2700, 2751, 2800, 3024, 3144, 3150, 3275, 3360, 3537, 3600, 3668, 3780, 3930, 4192, 4200, 4320, 4585, 4716, 4725, 5040, 5240, 5400, 5502, 5600, 5895, 6048, 6288, 6300, 6550, 7074, 7200, 7336, 7560, 7860, 8253, 8400, 9170, 9432, 9450, 9825, 10080, 10480, 10800, 11004, 11790, 12576, 12600, 13100, 13755, 14148, 14672, 15120, 15720, 16506, 16800, 17685, 18340, 18864, 18900, 19650, 20960, 21600, 22008, 22925, 23580, 24759, 25200, 26200, 27510, 28296, 29344, 29475, 30240, 31440, 33012, 35370, 36680, 37728, 37800, 39300, 41265, 44016, 45850, 47160, 49518, 50400, 52400, 55020, 56592, 58950, 62880, 66024, 68775, 70740, 73360, 75600, 78600, 82530, 88032, 88425, 91700, 94320, 99036, 104800, 110040, 113184, 117900, 123795, 132048, 137550, 141480, 146720, 151200, 157200, 165060, 176850, 183400, 188640, 198072, 206325, 220080, 235800, 247590, 264096, 275100, 282960, 314400, 330120, 353700, 366800, 396144, 412650, 440160, 471600, 495180, 550200, 565920, 618975, 660240, 707400, 733600, 792288, 825300, 943200, 990360, 1100400, 1237950, 1320480, 1414800, 1650600, 1980720, 2200800, 2475900, 2829600, 3301200, 3961440, 4951800, 6602400, 9903600, 19807200]

約数ペア:

[(1, 19807200), (2, 9903600), (3, 6602400), (4, 4951800), (5, 3961440), (6, 3301200), (7, 2829600), (8, 2475900), (9, 2200800), (10, 1980720), (12, 1650600), (14, 1414800), (15, 1320480), (16, 1237950), (18, 1100400), (20, 990360), (21, 943200), (24, 825300), (25, 792288), (27, 733600), (28, 707400), (30, 660240), (32, 618975), (35, 565920), (36, 550200), (40, 495180), (42, 471600), (45, 440160), (48, 412650), (50, 396144), (54, 366800), (56, 353700), (60, 330120), (63, 314400), (70, 282960), (72, 275100), (75, 264096), (80, 247590), (84, 235800), (90, 220080), (96, 206325), (100, 198072), (105, 188640), (108, 183400), (112, 176850), (120, 165060), (126, 157200), (131, 151200), (135, 146720), (140, 141480), (144, 137550), (150, 132048), (160, 123795), (168, 117900), (175, 113184), (180, 110040), (189, 104800), (200, 99036), (210, 94320), (216, 91700), (224, 88425), (225, 88032), (240, 82530), (252, 78600), (262, 75600), (270, 73360), (280, 70740), (288, 68775), (300, 66024), (315, 62880), (336, 58950), (350, 56592), (360, 55020), (378, 52400), (393, 50400), (400, 49518), (420, 47160), (432, 45850), (450, 44016), (480, 41265), (504, 39300), (524, 37800), (525, 37728), (540, 36680), (560, 35370), (600, 33012), (630, 31440), (655, 30240), (672, 29475), (675, 29344), (700, 28296), (720, 27510), (756, 26200), (786, 25200), (800, 24759), (840, 23580), (864, 22925), (900, 22008), (917, 21600), (945, 20960), (1008, 19650), (1048, 18900), (1050, 18864), (1080, 18340), (1120, 17685), (1179, 16800), (1200, 16506), (1260, 15720), (1310, 15120), (1350, 14672), (1400, 14148), (1440, 13755), (1512, 13100), (1572, 12600), (1575, 12576), (1680, 11790), (1800, 11004), (1834, 10800), (1890, 10480), (1965, 10080), (2016, 9825), (2096, 9450), (2100, 9432), (2160, 9170), (2358, 8400), (2400, 8253), (2520, 7860), (2620, 7560), (2700, 7336), (2751, 7200), (2800, 7074), (3024, 6550), (3144, 6300), (3150, 6288), (3275, 6048), (3360, 5895), (3537, 5600), (3600, 5502), (3668, 5400), (3780, 5240), (3930, 5040), (4192, 4725), (4200, 4716), (4320, 4585)]