20463872

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1$

素因数の和:96

約数の個数: 108

約数和(自身を含む): 49374864

約数和(自身を除く): 28910992

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 43, 44, 52, 64, 86, 88, 104, 128, 143, 169, 172, 176, 208, 256, 286, 338, 344, 352, 416, 473, 559, 572, 676, 688, 704, 832, 946, 1118, 1144, 1352, 1376, 1408, 1664, 1859, 1892, 2236, 2288, 2704, 2752, 2816, 3328, 3718, 3784, 4472, 4576, 5408, 5504, 6149, 7267, 7436, 7568, 8944, 9152, 10816, 11008, 12298, 14534, 14872, 15136, 17888, 18304, 21632, 24596, 29068, 29744, 30272, 35776, 36608, 43264, 49192, 58136, 59488, 60544, 71552, 79937, 98384, 116272, 118976, 121088, 143104, 159874, 196768, 232544, 237952, 319748, 393536, 465088, 475904, 639496, 787072, 930176, 1278992, 1574144, 1860352, 2557984, 5115968, 10231936, 20463872]

約数ペア:

[(1, 20463872), (2, 10231936), (4, 5115968), (8, 2557984), (11, 1860352), (13, 1574144), (16, 1278992), (22, 930176), (26, 787072), (32, 639496), (43, 475904), (44, 465088), (52, 393536), (64, 319748), (86, 237952), (88, 232544), (104, 196768), (128, 159874), (143, 143104), (169, 121088), (172, 118976), (176, 116272), (208, 98384), (256, 79937), (286, 71552), (338, 60544), (344, 59488), (352, 58136), (416, 49192), (473, 43264), (559, 36608), (572, 35776), (676, 30272), (688, 29744), (704, 29068), (832, 24596), (946, 21632), (1118, 18304), (1144, 17888), (1352, 15136), (1376, 14872), (1408, 14534), (1664, 12298), (1859, 11008), (1892, 10816), (2236, 9152), (2288, 8944), (2704, 7568), (2752, 7436), (2816, 7267), (3328, 6149), (3718, 5504), (3784, 5408), (4472, 4576)]