31381504

素因数分解:

$2^{11}\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 78624000

約数和(自身を除く): 47242496

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 199, 224, 256, 308, 352, 398, 448, 512, 616, 704, 796, 896, 1024, 1232, 1393, 1408, 1592, 1792, 2048, 2189, 2464, 2786, 2816, 3184, 3584, 4378, 4928, 5572, 5632, 6368, 7168, 8756, 9856, 11144, 11264, 12736, 14336, 15323, 17512, 19712, 22288, 22528, 25472, 30646, 35024, 39424, 44576, 50944, 61292, 70048, 78848, 89152, 101888, 122584, 140096, 157696, 178304, 203776, 245168, 280192, 356608, 407552, 490336, 560384, 713216, 980672, 1120768, 1426432, 1961344, 2241536, 2852864, 3922688, 4483072, 7845376, 15690752, 31381504]

約数ペア:

[(1, 31381504), (2, 15690752), (4, 7845376), (7, 4483072), (8, 3922688), (11, 2852864), (14, 2241536), (16, 1961344), (22, 1426432), (28, 1120768), (32, 980672), (44, 713216), (56, 560384), (64, 490336), (77, 407552), (88, 356608), (112, 280192), (128, 245168), (154, 203776), (176, 178304), (199, 157696), (224, 140096), (256, 122584), (308, 101888), (352, 89152), (398, 78848), (448, 70048), (512, 61292), (616, 50944), (704, 44576), (796, 39424), (896, 35024), (1024, 30646), (1232, 25472), (1393, 22528), (1408, 22288), (1592, 19712), (1792, 17512), (2048, 15323), (2189, 14336), (2464, 12736), (2786, 11264), (2816, 11144), (3184, 9856), (3584, 8756), (4378, 7168), (4928, 6368), (5572, 5632)]