20292272

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:227

約数の個数: 120

約数和(自身を含む): 54027792

約数和(自身を除く): 33735520

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 49, 52, 56, 77, 88, 91, 98, 104, 112, 143, 154, 176, 181, 182, 196, 208, 286, 308, 362, 364, 392, 539, 572, 616, 637, 724, 728, 784, 1001, 1078, 1144, 1232, 1267, 1274, 1448, 1456, 1991, 2002, 2156, 2288, 2353, 2534, 2548, 2896, 3982, 4004, 4312, 4706, 5068, 5096, 7007, 7964, 8008, 8624, 8869, 9412, 10136, 10192, 13937, 14014, 15928, 16016, 16471, 17738, 18824, 20272, 25883, 27874, 28028, 31856, 32942, 35476, 37648, 51766, 55748, 56056, 65884, 70952, 97559, 103532, 111496, 112112, 115297, 131768, 141904, 181181, 195118, 207064, 222992, 230594, 263536, 362362, 390236, 414128, 461188, 724724, 780472, 922376, 1268267, 1449448, 1560944, 1844752, 2536534, 2898896, 5073068, 10146136, 20292272]

約数ペア:

[(1, 20292272), (2, 10146136), (4, 5073068), (7, 2898896), (8, 2536534), (11, 1844752), (13, 1560944), (14, 1449448), (16, 1268267), (22, 922376), (26, 780472), (28, 724724), (44, 461188), (49, 414128), (52, 390236), (56, 362362), (77, 263536), (88, 230594), (91, 222992), (98, 207064), (104, 195118), (112, 181181), (143, 141904), (154, 131768), (176, 115297), (181, 112112), (182, 111496), (196, 103532), (208, 97559), (286, 70952), (308, 65884), (362, 56056), (364, 55748), (392, 51766), (539, 37648), (572, 35476), (616, 32942), (637, 31856), (724, 28028), (728, 27874), (784, 25883), (1001, 20272), (1078, 18824), (1144, 17738), (1232, 16471), (1267, 16016), (1274, 15928), (1448, 14014), (1456, 13937), (1991, 10192), (2002, 10136), (2156, 9412), (2288, 8869), (2353, 8624), (2534, 8008), (2548, 7964), (2896, 7007), (3982, 5096), (4004, 5068), (4312, 4706)]