1991197440

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1361}}^1$

素因数の和:1515

約数の個数: 216

約数和(自身を含む): 6948684288

約数和(自身を除く): 4957486848

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 127, 128, 144, 160, 180, 192, 240, 254, 256, 288, 320, 360, 381, 384, 480, 508, 576, 635, 640, 720, 762, 768, 960, 1016, 1143, 1152, 1270, 1280, 1361, 1440, 1524, 1905, 1920, 2032, 2286, 2304, 2540, 2722, 2880, 3048, 3810, 3840, 4064, 4083, 4572, 5080, 5444, 5715, 5760, 6096, 6805, 7620, 8128, 8166, 9144, 10160, 10888, 11430, 11520, 12192, 12249, 13610, 15240, 16256, 16332, 18288, 20320, 20415, 21776, 22860, 24384, 24498, 27220, 30480, 32512, 32664, 36576, 40640, 40830, 43552, 45720, 48768, 48996, 54440, 60960, 61245, 65328, 73152, 81280, 81660, 87104, 91440, 97536, 97992, 108880, 121920, 122490, 130656, 146304, 162560, 163320, 172847, 174208, 182880, 195984, 217760, 243840, 244980, 261312, 292608, 326640, 345694, 348416, 365760, 391968, 435520, 487680, 489960, 518541, 522624, 653280, 691388, 731520, 783936, 864235, 871040, 979920, 1037082, 1045248, 1306560, 1382776, 1463040, 1555623, 1567872, 1728470, 1742080, 1959840, 2074164, 2592705, 2613120, 2765552, 3111246, 3135744, 3456940, 3919680, 4148328, 5185410, 5226240, 5531104, 6222492, 6913880, 7778115, 7839360, 8296656, 10370820, 11062208, 12444984, 13827760, 15556230, 15678720, 16593312, 20741640, 22124416, 24889968, 27655520, 31112460, 33186624, 41483280, 44248832, 49779936, 55311040, 62224920, 66373248, 82966560, 99559872, 110622080, 124449840, 132746496, 165933120, 199119744, 221244160, 248899680, 331866240, 398239488, 497799360, 663732480, 995598720, 1991197440]

約数ペア:

[(1, 1991197440), (2, 995598720), (3, 663732480), (4, 497799360), (5, 398239488), (6, 331866240), (8, 248899680), (9, 221244160), (10, 199119744), (12, 165933120), (15, 132746496), (16, 124449840), (18, 110622080), (20, 99559872), (24, 82966560), (30, 66373248), (32, 62224920), (36, 55311040), (40, 49779936), (45, 44248832), (48, 41483280), (60, 33186624), (64, 31112460), (72, 27655520), (80, 24889968), (90, 22124416), (96, 20741640), (120, 16593312), (127, 15678720), (128, 15556230), (144, 13827760), (160, 12444984), (180, 11062208), (192, 10370820), (240, 8296656), (254, 7839360), (256, 7778115), (288, 6913880), (320, 6222492), (360, 5531104), (381, 5226240), (384, 5185410), (480, 4148328), (508, 3919680), (576, 3456940), (635, 3135744), (640, 3111246), (720, 2765552), (762, 2613120), (768, 2592705), (960, 2074164), (1016, 1959840), (1143, 1742080), (1152, 1728470), (1270, 1567872), (1280, 1555623), (1361, 1463040), (1440, 1382776), (1524, 1306560), (1905, 1045248), (1920, 1037082), (2032, 979920), (2286, 871040), (2304, 864235), (2540, 783936), (2722, 731520), (2880, 691388), (3048, 653280), (3810, 522624), (3840, 518541), (4064, 489960), (4083, 487680), (4572, 435520), (5080, 391968), (5444, 365760), (5715, 348416), (5760, 345694), (6096, 326640), (6805, 292608), (7620, 261312), (8128, 244980), (8166, 243840), (9144, 217760), (10160, 195984), (10888, 182880), (11430, 174208), (11520, 172847), (12192, 163320), (12249, 162560), (13610, 146304), (15240, 130656), (16256, 122490), (16332, 121920), (18288, 108880), (20320, 97992), (20415, 97536), (21776, 91440), (22860, 87104), (24384, 81660), (24498, 81280), (27220, 73152), (30480, 65328), (32512, 61245), (32664, 60960), (36576, 54440), (40640, 48996), (40830, 48768), (43552, 45720)]