81898560

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{9479}}^1$

素因数の和:9505

約数の個数: 112

約数和(自身を含む): 288950400

約数和(自身を除く): 207051840

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, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2880, 4320, 8640, 9479, 18958, 28437, 37916, 47395, 56874, 75832, 85311, 94790, 113748, 142185, 151664, 170622, 189580, 227496, 255933, 284370, 303328, 341244, 379160, 426555, 454992, 511866, 568740, 606656, 682488, 758320, 853110, 909984, 1023732, 1137480, 1279665, 1364976, 1516640, 1706220, 1819968, 2047464, 2274960, 2559330, 2729952, 3033280, 3412440, 4094928, 4549920, 5118660, 5459904, 6824880, 8189856, 9099840, 10237320, 13649760, 16379712, 20474640, 27299520, 40949280, 81898560]

約数ペア:

[(1, 81898560), (2, 40949280), (3, 27299520), (4, 20474640), (5, 16379712), (6, 13649760), (8, 10237320), (9, 9099840), (10, 8189856), (12, 6824880), (15, 5459904), (16, 5118660), (18, 4549920), (20, 4094928), (24, 3412440), (27, 3033280), (30, 2729952), (32, 2559330), (36, 2274960), (40, 2047464), (45, 1819968), (48, 1706220), (54, 1516640), (60, 1364976), (64, 1279665), (72, 1137480), (80, 1023732), (90, 909984), (96, 853110), (108, 758320), (120, 682488), (135, 606656), (144, 568740), (160, 511866), (180, 454992), (192, 426555), (216, 379160), (240, 341244), (270, 303328), (288, 284370), (320, 255933), (360, 227496), (432, 189580), (480, 170622), (540, 151664), (576, 142185), (720, 113748), (864, 94790), (960, 85311), (1080, 75832), (1440, 56874), (1728, 47395), (2160, 37916), (2880, 28437), (4320, 18958), (8640, 9479)]