285878528

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 675795456

約数和(自身を除く): 389916928

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 32, 34, 52, 62, 64, 68, 104, 124, 128, 136, 163, 208, 221, 248, 256, 272, 326, 403, 416, 442, 496, 527, 544, 652, 806, 832, 884, 992, 1054, 1088, 1304, 1612, 1664, 1768, 1984, 2108, 2119, 2176, 2608, 2771, 3224, 3328, 3536, 3968, 4216, 4238, 4352, 5053, 5216, 5542, 6448, 6851, 7072, 7936, 8432, 8476, 10106, 10432, 11084, 12896, 13702, 14144, 16864, 16952, 20212, 20864, 22168, 25792, 27404, 28288, 33728, 33904, 36023, 40424, 41728, 44336, 51584, 54808, 56576, 65689, 67456, 67808, 72046, 80848, 85901, 88672, 103168, 109616, 131378, 134912, 135616, 144092, 161696, 171802, 177344, 219232, 262756, 271232, 288184, 323392, 343604, 354688, 438464, 525512, 542464, 576368, 646784, 687208, 709376, 876928, 1051024, 1116713, 1152736, 1293568, 1374416, 1753856, 2102048, 2233426, 2305472, 2748832, 4204096, 4466852, 4610944, 5497664, 8408192, 8933704, 9221888, 10995328, 16816384, 17867408, 21990656, 35734816, 71469632, 142939264, 285878528]

約数ペア:

[(1, 285878528), (2, 142939264), (4, 71469632), (8, 35734816), (13, 21990656), (16, 17867408), (17, 16816384), (26, 10995328), (31, 9221888), (32, 8933704), (34, 8408192), (52, 5497664), (62, 4610944), (64, 4466852), (68, 4204096), (104, 2748832), (124, 2305472), (128, 2233426), (136, 2102048), (163, 1753856), (208, 1374416), (221, 1293568), (248, 1152736), (256, 1116713), (272, 1051024), (326, 876928), (403, 709376), (416, 687208), (442, 646784), (496, 576368), (527, 542464), (544, 525512), (652, 438464), (806, 354688), (832, 343604), (884, 323392), (992, 288184), (1054, 271232), (1088, 262756), (1304, 219232), (1612, 177344), (1664, 171802), (1768, 161696), (1984, 144092), (2108, 135616), (2119, 134912), (2176, 131378), (2608, 109616), (2771, 103168), (3224, 88672), (3328, 85901), (3536, 80848), (3968, 72046), (4216, 67808), (4238, 67456), (4352, 65689), (5053, 56576), (5216, 54808), (5542, 51584), (6448, 44336), (6851, 41728), (7072, 40424), (7936, 36023), (8432, 33904), (8476, 33728), (10106, 28288), (10432, 27404), (11084, 25792), (12896, 22168), (13702, 20864), (14144, 20212), (16864, 16952)]