81395712

素因数分解:

$2^{17}\times 3^3\times {\mathrm{23}}^1$

素因数の和:66

約数の個数: 144

約数和(自身を含む): 251657280

約数和(自身を除く): 170261568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 32, 36, 46, 48, 54, 64, 69, 72, 92, 96, 108, 128, 138, 144, 184, 192, 207, 216, 256, 276, 288, 368, 384, 414, 432, 512, 552, 576, 621, 736, 768, 828, 864, 1024, 1104, 1152, 1242, 1472, 1536, 1656, 1728, 2048, 2208, 2304, 2484, 2944, 3072, 3312, 3456, 4096, 4416, 4608, 4968, 5888, 6144, 6624, 6912, 8192, 8832, 9216, 9936, 11776, 12288, 13248, 13824, 16384, 17664, 18432, 19872, 23552, 24576, 26496, 27648, 32768, 35328, 36864, 39744, 47104, 49152, 52992, 55296, 65536, 70656, 73728, 79488, 94208, 98304, 105984, 110592, 131072, 141312, 147456, 158976, 188416, 196608, 211968, 221184, 282624, 294912, 317952, 376832, 393216, 423936, 442368, 565248, 589824, 635904, 753664, 847872, 884736, 1130496, 1179648, 1271808, 1507328, 1695744, 1769472, 2260992, 2543616, 3014656, 3391488, 3538944, 4521984, 5087232, 6782976, 9043968, 10174464, 13565952, 20348928, 27131904, 40697856, 81395712]

約数ペア:

[(1, 81395712), (2, 40697856), (3, 27131904), (4, 20348928), (6, 13565952), (8, 10174464), (9, 9043968), (12, 6782976), (16, 5087232), (18, 4521984), (23, 3538944), (24, 3391488), (27, 3014656), (32, 2543616), (36, 2260992), (46, 1769472), (48, 1695744), (54, 1507328), (64, 1271808), (69, 1179648), (72, 1130496), (92, 884736), (96, 847872), (108, 753664), (128, 635904), (138, 589824), (144, 565248), (184, 442368), (192, 423936), (207, 393216), (216, 376832), (256, 317952), (276, 294912), (288, 282624), (368, 221184), (384, 211968), (414, 196608), (432, 188416), (512, 158976), (552, 147456), (576, 141312), (621, 131072), (736, 110592), (768, 105984), (828, 98304), (864, 94208), (1024, 79488), (1104, 73728), (1152, 70656), (1242, 65536), (1472, 55296), (1536, 52992), (1656, 49152), (1728, 47104), (2048, 39744), (2208, 36864), (2304, 35328), (2484, 32768), (2944, 27648), (3072, 26496), (3312, 24576), (3456, 23552), (4096, 19872), (4416, 18432), (4608, 17664), (4968, 16384), (5888, 13824), (6144, 13248), (6624, 12288), (6912, 11776), (8192, 9936), (8832, 9216)]