81736560

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:580

約数の個数: 160

約数和(自身を含む): 285696000

約数和(自身を除く): 203959440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 79, 80, 90, 108, 120, 135, 144, 158, 180, 216, 237, 240, 270, 316, 360, 395, 432, 474, 479, 540, 632, 711, 720, 790, 948, 958, 1080, 1185, 1264, 1422, 1437, 1580, 1896, 1916, 2133, 2160, 2370, 2395, 2844, 2874, 3160, 3555, 3792, 3832, 4266, 4311, 4740, 4790, 5688, 5748, 6320, 7110, 7185, 7664, 8532, 8622, 9480, 9580, 10665, 11376, 11496, 12933, 14220, 14370, 17064, 17244, 18960, 19160, 21330, 21555, 22992, 25866, 28440, 28740, 34128, 34488, 37841, 38320, 42660, 43110, 51732, 56880, 57480, 64665, 68976, 75682, 85320, 86220, 103464, 113523, 114960, 129330, 151364, 170640, 172440, 189205, 206928, 227046, 258660, 302728, 340569, 344880, 378410, 454092, 517320, 567615, 605456, 681138, 756820, 908184, 1021707, 1034640, 1135230, 1362276, 1513640, 1702845, 1816368, 2043414, 2270460, 2724552, 3027280, 3405690, 4086828, 4540920, 5108535, 5449104, 6811380, 8173656, 9081840, 10217070, 13622760, 16347312, 20434140, 27245520, 40868280, 81736560]

約数ペア:

[(1, 81736560), (2, 40868280), (3, 27245520), (4, 20434140), (5, 16347312), (6, 13622760), (8, 10217070), (9, 9081840), (10, 8173656), (12, 6811380), (15, 5449104), (16, 5108535), (18, 4540920), (20, 4086828), (24, 3405690), (27, 3027280), (30, 2724552), (36, 2270460), (40, 2043414), (45, 1816368), (48, 1702845), (54, 1513640), (60, 1362276), (72, 1135230), (79, 1034640), (80, 1021707), (90, 908184), (108, 756820), (120, 681138), (135, 605456), (144, 567615), (158, 517320), (180, 454092), (216, 378410), (237, 344880), (240, 340569), (270, 302728), (316, 258660), (360, 227046), (395, 206928), (432, 189205), (474, 172440), (479, 170640), (540, 151364), (632, 129330), (711, 114960), (720, 113523), (790, 103464), (948, 86220), (958, 85320), (1080, 75682), (1185, 68976), (1264, 64665), (1422, 57480), (1437, 56880), (1580, 51732), (1896, 43110), (1916, 42660), (2133, 38320), (2160, 37841), (2370, 34488), (2395, 34128), (2844, 28740), (2874, 28440), (3160, 25866), (3555, 22992), (3792, 21555), (3832, 21330), (4266, 19160), (4311, 18960), (4740, 17244), (4790, 17064), (5688, 14370), (5748, 14220), (6320, 12933), (7110, 11496), (7185, 11376), (7664, 10665), (8532, 9580), (8622, 9480)]