20489504

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 96

約数和(自身を含む): 49787136

約数和(自身を除く): 29297632

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 41, 46, 56, 82, 92, 97, 112, 161, 164, 184, 194, 224, 287, 322, 328, 368, 388, 574, 644, 656, 679, 736, 776, 943, 1148, 1288, 1312, 1358, 1552, 1886, 2231, 2296, 2576, 2716, 3104, 3772, 3977, 4462, 4592, 5152, 5432, 6601, 7544, 7954, 8924, 9184, 10864, 13202, 15088, 15617, 15908, 17848, 21728, 26404, 27839, 30176, 31234, 31816, 35696, 52808, 55678, 62468, 63632, 71392, 91471, 105616, 111356, 124936, 127264, 182942, 211232, 222712, 249872, 365884, 445424, 499744, 640297, 731768, 890848, 1280594, 1463536, 2561188, 2927072, 5122376, 10244752, 20489504]

約数ペア:

[(1, 20489504), (2, 10244752), (4, 5122376), (7, 2927072), (8, 2561188), (14, 1463536), (16, 1280594), (23, 890848), (28, 731768), (32, 640297), (41, 499744), (46, 445424), (56, 365884), (82, 249872), (92, 222712), (97, 211232), (112, 182942), (161, 127264), (164, 124936), (184, 111356), (194, 105616), (224, 91471), (287, 71392), (322, 63632), (328, 62468), (368, 55678), (388, 52808), (574, 35696), (644, 31816), (656, 31234), (679, 30176), (736, 27839), (776, 26404), (943, 21728), (1148, 17848), (1288, 15908), (1312, 15617), (1358, 15088), (1552, 13202), (1886, 10864), (2231, 9184), (2296, 8924), (2576, 7954), (2716, 7544), (3104, 6601), (3772, 5432), (3977, 5152), (4462, 4592)]