81565920

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:342

約数の個数: 192

約数和(自身を含む): 290304000

約数和(自身を除く): 208738080

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, 72, 79, 80, 90, 96, 108, 120, 135, 144, 158, 160, 180, 216, 237, 239, 240, 270, 288, 316, 360, 395, 432, 474, 478, 480, 540, 632, 711, 717, 720, 790, 864, 948, 956, 1080, 1185, 1195, 1264, 1422, 1434, 1440, 1580, 1896, 1912, 2133, 2151, 2160, 2370, 2390, 2528, 2844, 2868, 3160, 3555, 3585, 3792, 3824, 4266, 4302, 4320, 4740, 4780, 5688, 5736, 6320, 6453, 7110, 7170, 7584, 7648, 8532, 8604, 9480, 9560, 10665, 10755, 11376, 11472, 12640, 12906, 14220, 14340, 17064, 17208, 18881, 18960, 19120, 21330, 21510, 22752, 22944, 25812, 28440, 28680, 32265, 34128, 34416, 37762, 37920, 38240, 42660, 43020, 51624, 56643, 56880, 57360, 64530, 68256, 68832, 75524, 85320, 86040, 94405, 103248, 113286, 113760, 114720, 129060, 151048, 169929, 170640, 172080, 188810, 206496, 226572, 258120, 283215, 302096, 339858, 341280, 344160, 377620, 453144, 509787, 516240, 566430, 604192, 679716, 755240, 849645, 906288, 1019574, 1032480, 1132860, 1359432, 1510480, 1699290, 1812576, 2039148, 2265720, 2548935, 2718864, 3020960, 3398580, 4078296, 4531440, 5097870, 5437728, 6797160, 8156592, 9062880, 10195740, 13594320, 16313184, 20391480, 27188640, 40782960, 81565920]

約数ペア:

[(1, 81565920), (2, 40782960), (3, 27188640), (4, 20391480), (5, 16313184), (6, 13594320), (8, 10195740), (9, 9062880), (10, 8156592), (12, 6797160), (15, 5437728), (16, 5097870), (18, 4531440), (20, 4078296), (24, 3398580), (27, 3020960), (30, 2718864), (32, 2548935), (36, 2265720), (40, 2039148), (45, 1812576), (48, 1699290), (54, 1510480), (60, 1359432), (72, 1132860), (79, 1032480), (80, 1019574), (90, 906288), (96, 849645), (108, 755240), (120, 679716), (135, 604192), (144, 566430), (158, 516240), (160, 509787), (180, 453144), (216, 377620), (237, 344160), (239, 341280), (240, 339858), (270, 302096), (288, 283215), (316, 258120), (360, 226572), (395, 206496), (432, 188810), (474, 172080), (478, 170640), (480, 169929), (540, 151048), (632, 129060), (711, 114720), (717, 113760), (720, 113286), (790, 103248), (864, 94405), (948, 86040), (956, 85320), (1080, 75524), (1185, 68832), (1195, 68256), (1264, 64530), (1422, 57360), (1434, 56880), (1440, 56643), (1580, 51624), (1896, 43020), (1912, 42660), (2133, 38240), (2151, 37920), (2160, 37762), (2370, 34416), (2390, 34128), (2528, 32265), (2844, 28680), (2868, 28440), (3160, 25812), (3555, 22944), (3585, 22752), (3792, 21510), (3824, 21330), (4266, 19120), (4302, 18960), (4320, 18881), (4740, 17208), (4780, 17064), (5688, 14340), (5736, 14220), (6320, 12906), (6453, 12640), (7110, 11472), (7170, 11376), (7584, 10755), (7648, 10665), (8532, 9560), (8604, 9480)]