1988478720

素因数分解:

$2^8\times 3^6\times 5^1\times {\mathrm{2131}}^1$

素因数の和:2170

約数の個数: 252

約数和(自身を含む): 7144626216

約数和(自身を除く): 5156147496

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 540, 576, 640, 648, 720, 729, 768, 810, 864, 960, 972, 1080, 1152, 1215, 1280, 1296, 1440, 1458, 1620, 1728, 1920, 1944, 2131, 2160, 2304, 2430, 2592, 2880, 2916, 3240, 3456, 3645, 3840, 3888, 4262, 4320, 4860, 5184, 5760, 5832, 6393, 6480, 6912, 7290, 7776, 8524, 8640, 9720, 10368, 10655, 11520, 11664, 12786, 12960, 14580, 15552, 17048, 17280, 19179, 19440, 20736, 21310, 23328, 25572, 25920, 29160, 31104, 31965, 34096, 34560, 38358, 38880, 42620, 46656, 51144, 51840, 57537, 58320, 62208, 63930, 68192, 76716, 77760, 85240, 93312, 95895, 102288, 103680, 115074, 116640, 127860, 136384, 153432, 155520, 170480, 172611, 186624, 191790, 204576, 230148, 233280, 255720, 272768, 287685, 306864, 311040, 340960, 345222, 383580, 409152, 460296, 466560, 511440, 517833, 545536, 575370, 613728, 681920, 690444, 767160, 818304, 863055, 920592, 933120, 1022880, 1035666, 1150740, 1227456, 1363840, 1380888, 1534320, 1553499, 1636608, 1726110, 1841184, 2045760, 2071332, 2301480, 2454912, 2589165, 2727680, 2761776, 3068640, 3106998, 3452220, 3682368, 4091520, 4142664, 4602960, 4909824, 5178330, 5523552, 6137280, 6213996, 6904440, 7364736, 7767495, 8183040, 8285328, 9205920, 10356660, 11047104, 12274560, 12427992, 13808880, 14729472, 15534990, 16570656, 18411840, 20713320, 22094208, 24549120, 24855984, 27617760, 31069980, 33141312, 36823680, 41426640, 44188416, 49711968, 55235520, 62139960, 66282624, 73647360, 82853280, 99423936, 110471040, 124279920, 132565248, 165706560, 198847872, 220942080, 248559840, 331413120, 397695744, 497119680, 662826240, 994239360, 1988478720]

約数ペア:

[(1, 1988478720), (2, 994239360), (3, 662826240), (4, 497119680), (5, 397695744), (6, 331413120), (8, 248559840), (9, 220942080), (10, 198847872), (12, 165706560), (15, 132565248), (16, 124279920), (18, 110471040), (20, 99423936), (24, 82853280), (27, 73647360), (30, 66282624), (32, 62139960), (36, 55235520), (40, 49711968), (45, 44188416), (48, 41426640), (54, 36823680), (60, 33141312), (64, 31069980), (72, 27617760), (80, 24855984), (81, 24549120), (90, 22094208), (96, 20713320), (108, 18411840), (120, 16570656), (128, 15534990), (135, 14729472), (144, 13808880), (160, 12427992), (162, 12274560), (180, 11047104), (192, 10356660), (216, 9205920), (240, 8285328), (243, 8183040), (256, 7767495), (270, 7364736), (288, 6904440), (320, 6213996), (324, 6137280), (360, 5523552), (384, 5178330), (405, 4909824), (432, 4602960), (480, 4142664), (486, 4091520), (540, 3682368), (576, 3452220), (640, 3106998), (648, 3068640), (720, 2761776), (729, 2727680), (768, 2589165), (810, 2454912), (864, 2301480), (960, 2071332), (972, 2045760), (1080, 1841184), (1152, 1726110), (1215, 1636608), (1280, 1553499), (1296, 1534320), (1440, 1380888), (1458, 1363840), (1620, 1227456), (1728, 1150740), (1920, 1035666), (1944, 1022880), (2131, 933120), (2160, 920592), (2304, 863055), (2430, 818304), (2592, 767160), (2880, 690444), (2916, 681920), (3240, 613728), (3456, 575370), (3645, 545536), (3840, 517833), (3888, 511440), (4262, 466560), (4320, 460296), (4860, 409152), (5184, 383580), (5760, 345222), (5832, 340960), (6393, 311040), (6480, 306864), (6912, 287685), (7290, 272768), (7776, 255720), (8524, 233280), (8640, 230148), (9720, 204576), (10368, 191790), (10655, 186624), (11520, 172611), (11664, 170480), (12786, 155520), (12960, 153432), (14580, 136384), (15552, 127860), (17048, 116640), (17280, 115074), (19179, 103680), (19440, 102288), (20736, 95895), (21310, 93312), (23328, 85240), (25572, 77760), (25920, 76716), (29160, 68192), (31104, 63930), (31965, 62208), (34096, 58320), (34560, 57537), (38358, 51840), (38880, 51144), (42620, 46656)]