309999872

素因数分解:

$2^8\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1901}}^1$

素因数の和:1944

約数の個数: 108

約数和(自身を含む): 775593756

約数和(自身を除く): 465593884

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 128, 182, 196, 208, 224, 256, 364, 392, 416, 448, 637, 728, 784, 832, 896, 1274, 1456, 1568, 1664, 1792, 1901, 2548, 2912, 3136, 3328, 3802, 5096, 5824, 6272, 7604, 10192, 11648, 12544, 13307, 15208, 20384, 23296, 24713, 26614, 30416, 40768, 49426, 53228, 60832, 81536, 93149, 98852, 106456, 121664, 163072, 172991, 186298, 197704, 212912, 243328, 345982, 372596, 395408, 425824, 486656, 691964, 745192, 790816, 851648, 1210937, 1383928, 1490384, 1581632, 1703296, 2421874, 2767856, 2980768, 3163264, 3406592, 4843748, 5535712, 5961536, 6326528, 9687496, 11071424, 11923072, 19374992, 22142848, 23846144, 38749984, 44285696, 77499968, 154999936, 309999872]

約数ペア:

[(1, 309999872), (2, 154999936), (4, 77499968), (7, 44285696), (8, 38749984), (13, 23846144), (14, 22142848), (16, 19374992), (26, 11923072), (28, 11071424), (32, 9687496), (49, 6326528), (52, 5961536), (56, 5535712), (64, 4843748), (91, 3406592), (98, 3163264), (104, 2980768), (112, 2767856), (128, 2421874), (182, 1703296), (196, 1581632), (208, 1490384), (224, 1383928), (256, 1210937), (364, 851648), (392, 790816), (416, 745192), (448, 691964), (637, 486656), (728, 425824), (784, 395408), (832, 372596), (896, 345982), (1274, 243328), (1456, 212912), (1568, 197704), (1664, 186298), (1792, 172991), (1901, 163072), (2548, 121664), (2912, 106456), (3136, 98852), (3328, 93149), (3802, 81536), (5096, 60832), (5824, 53228), (6272, 49426), (7604, 40768), (10192, 30416), (11648, 26614), (12544, 24713), (13307, 23296), (15208, 20384)]