81381888

素因数分解:

$2^9\times 3^3\times 7^1\times {\mathrm{29}}^2$

素因数の和:92

約数の個数: 240

約数和(自身を含む): 285130560

約数和(自身を除く): 203748672

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 29, 32, 36, 42, 48, 54, 56, 58, 63, 64, 72, 84, 87, 96, 108, 112, 116, 126, 128, 144, 168, 174, 189, 192, 203, 216, 224, 232, 252, 256, 261, 288, 336, 348, 378, 384, 406, 432, 448, 464, 504, 512, 522, 576, 609, 672, 696, 756, 768, 783, 812, 841, 864, 896, 928, 1008, 1044, 1152, 1218, 1344, 1392, 1512, 1536, 1566, 1624, 1682, 1728, 1792, 1827, 1856, 2016, 2088, 2304, 2436, 2523, 2688, 2784, 3024, 3132, 3248, 3364, 3456, 3584, 3654, 3712, 4032, 4176, 4608, 4872, 5046, 5376, 5481, 5568, 5887, 6048, 6264, 6496, 6728, 6912, 7308, 7424, 7569, 8064, 8352, 9744, 10092, 10752, 10962, 11136, 11774, 12096, 12528, 12992, 13456, 13824, 14616, 14848, 15138, 16128, 16704, 17661, 19488, 20184, 21924, 22272, 22707, 23548, 24192, 25056, 25984, 26912, 29232, 30276, 32256, 33408, 35322, 38976, 40368, 43848, 44544, 45414, 47096, 48384, 50112, 51968, 52983, 53824, 58464, 60552, 66816, 70644, 77952, 80736, 87696, 90828, 94192, 96768, 100224, 103936, 105966, 107648, 116928, 121104, 133632, 141288, 155904, 158949, 161472, 175392, 181656, 188384, 200448, 211932, 215296, 233856, 242208, 282576, 311808, 317898, 322944, 350784, 363312, 376768, 400896, 423864, 430592, 467712, 484416, 565152, 635796, 645888, 701568, 726624, 753536, 847728, 935424, 968832, 1130304, 1271592, 1291776, 1403136, 1453248, 1507072, 1695456, 1937664, 2260608, 2543184, 2806272, 2906496, 3014144, 3390912, 3875328, 4521216, 5086368, 5812992, 6781824, 9042432, 10172736, 11625984, 13563648, 20345472, 27127296, 40690944, 81381888]

約数ペア:

[(1, 81381888), (2, 40690944), (3, 27127296), (4, 20345472), (6, 13563648), (7, 11625984), (8, 10172736), (9, 9042432), (12, 6781824), (14, 5812992), (16, 5086368), (18, 4521216), (21, 3875328), (24, 3390912), (27, 3014144), (28, 2906496), (29, 2806272), (32, 2543184), (36, 2260608), (42, 1937664), (48, 1695456), (54, 1507072), (56, 1453248), (58, 1403136), (63, 1291776), (64, 1271592), (72, 1130304), (84, 968832), (87, 935424), (96, 847728), (108, 753536), (112, 726624), (116, 701568), (126, 645888), (128, 635796), (144, 565152), (168, 484416), (174, 467712), (189, 430592), (192, 423864), (203, 400896), (216, 376768), (224, 363312), (232, 350784), (252, 322944), (256, 317898), (261, 311808), (288, 282576), (336, 242208), (348, 233856), (378, 215296), (384, 211932), (406, 200448), (432, 188384), (448, 181656), (464, 175392), (504, 161472), (512, 158949), (522, 155904), (576, 141288), (609, 133632), (672, 121104), (696, 116928), (756, 107648), (768, 105966), (783, 103936), (812, 100224), (841, 96768), (864, 94192), (896, 90828), (928, 87696), (1008, 80736), (1044, 77952), (1152, 70644), (1218, 66816), (1344, 60552), (1392, 58464), (1512, 53824), (1536, 52983), (1566, 51968), (1624, 50112), (1682, 48384), (1728, 47096), (1792, 45414), (1827, 44544), (1856, 43848), (2016, 40368), (2088, 38976), (2304, 35322), (2436, 33408), (2523, 32256), (2688, 30276), (2784, 29232), (3024, 26912), (3132, 25984), (3248, 25056), (3364, 24192), (3456, 23548), (3584, 22707), (3654, 22272), (3712, 21924), (4032, 20184), (4176, 19488), (4608, 17661), (4872, 16704), (5046, 16128), (5376, 15138), (5481, 14848), (5568, 14616), (5887, 13824), (6048, 13456), (6264, 12992), (6496, 12528), (6728, 12096), (6912, 11774), (7308, 11136), (7424, 10962), (7569, 10752), (8064, 10092), (8352, 9744)]