81096480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{283}}^1$

素因数の和:503

約数の個数: 144

約数和(自身を含む): 279115200

約数和(自身を除く): 198018720

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, 72, 80, 90, 96, 120, 144, 160, 180, 199, 240, 283, 288, 360, 398, 480, 566, 597, 720, 796, 849, 995, 1132, 1194, 1415, 1440, 1592, 1698, 1791, 1990, 2264, 2388, 2547, 2830, 2985, 3184, 3396, 3582, 3980, 4245, 4528, 4776, 5094, 5660, 5970, 6368, 6792, 7164, 7960, 8490, 8955, 9056, 9552, 10188, 11320, 11940, 12735, 13584, 14328, 15920, 16980, 17910, 19104, 20376, 22640, 23880, 25470, 27168, 28656, 31840, 33960, 35820, 40752, 45280, 47760, 50940, 56317, 57312, 67920, 71640, 81504, 95520, 101880, 112634, 135840, 143280, 168951, 203760, 225268, 281585, 286560, 337902, 407520, 450536, 506853, 563170, 675804, 844755, 901072, 1013706, 1126340, 1351608, 1689510, 1802144, 2027412, 2252680, 2534265, 2703216, 3379020, 4054824, 4505360, 5068530, 5406432, 6758040, 8109648, 9010720, 10137060, 13516080, 16219296, 20274120, 27032160, 40548240, 81096480]

約数ペア:

[(1, 81096480), (2, 40548240), (3, 27032160), (4, 20274120), (5, 16219296), (6, 13516080), (8, 10137060), (9, 9010720), (10, 8109648), (12, 6758040), (15, 5406432), (16, 5068530), (18, 4505360), (20, 4054824), (24, 3379020), (30, 2703216), (32, 2534265), (36, 2252680), (40, 2027412), (45, 1802144), (48, 1689510), (60, 1351608), (72, 1126340), (80, 1013706), (90, 901072), (96, 844755), (120, 675804), (144, 563170), (160, 506853), (180, 450536), (199, 407520), (240, 337902), (283, 286560), (288, 281585), (360, 225268), (398, 203760), (480, 168951), (566, 143280), (597, 135840), (720, 112634), (796, 101880), (849, 95520), (995, 81504), (1132, 71640), (1194, 67920), (1415, 57312), (1440, 56317), (1592, 50940), (1698, 47760), (1791, 45280), (1990, 40752), (2264, 35820), (2388, 33960), (2547, 31840), (2830, 28656), (2985, 27168), (3184, 25470), (3396, 23880), (3582, 22640), (3980, 20376), (4245, 19104), (4528, 17910), (4776, 16980), (5094, 15920), (5660, 14328), (5970, 13584), (6368, 12735), (6792, 11940), (7164, 11320), (7960, 10188), (8490, 9552), (8955, 9056)]