20517504

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:490

約数の個数: 128

約数和(自身を含む): 66096000

約数和(自身を除く): 45578496

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 32, 34, 42, 48, 51, 56, 64, 68, 84, 96, 102, 112, 119, 128, 136, 168, 192, 204, 224, 238, 272, 336, 357, 384, 408, 448, 449, 476, 544, 672, 714, 816, 896, 898, 952, 1088, 1344, 1347, 1428, 1632, 1796, 1904, 2176, 2688, 2694, 2856, 3143, 3264, 3592, 3808, 5388, 5712, 6286, 6528, 7184, 7616, 7633, 9429, 10776, 11424, 12572, 14368, 15232, 15266, 18858, 21552, 22848, 22899, 25144, 28736, 30532, 37716, 43104, 45696, 45798, 50288, 53431, 57472, 61064, 75432, 86208, 91596, 100576, 106862, 122128, 150864, 160293, 172416, 183192, 201152, 213724, 244256, 301728, 320586, 366384, 402304, 427448, 488512, 603456, 641172, 732768, 854896, 977024, 1206912, 1282344, 1465536, 1709792, 2564688, 2931072, 3419584, 5129376, 6839168, 10258752, 20517504]

約数ペア:

[(1, 20517504), (2, 10258752), (3, 6839168), (4, 5129376), (6, 3419584), (7, 2931072), (8, 2564688), (12, 1709792), (14, 1465536), (16, 1282344), (17, 1206912), (21, 977024), (24, 854896), (28, 732768), (32, 641172), (34, 603456), (42, 488512), (48, 427448), (51, 402304), (56, 366384), (64, 320586), (68, 301728), (84, 244256), (96, 213724), (102, 201152), (112, 183192), (119, 172416), (128, 160293), (136, 150864), (168, 122128), (192, 106862), (204, 100576), (224, 91596), (238, 86208), (272, 75432), (336, 61064), (357, 57472), (384, 53431), (408, 50288), (448, 45798), (449, 45696), (476, 43104), (544, 37716), (672, 30532), (714, 28736), (816, 25144), (896, 22899), (898, 22848), (952, 21552), (1088, 18858), (1344, 15266), (1347, 15232), (1428, 14368), (1632, 12572), (1796, 11424), (1904, 10776), (2176, 9429), (2688, 7633), (2694, 7616), (2856, 7184), (3143, 6528), (3264, 6286), (3592, 5712), (3808, 5388)]