20404832

素因数分解:

$2^5\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1283}}^1$

素因数の和:1371

約数の個数: 48

約数和(自身を含む): 46593792

約数和(自身を除く): 26188960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 71, 112, 142, 224, 284, 497, 568, 994, 1136, 1283, 1988, 2272, 2566, 3976, 5132, 7952, 8981, 10264, 15904, 17962, 20528, 35924, 41056, 71848, 91093, 143696, 182186, 287392, 364372, 637651, 728744, 1275302, 1457488, 2550604, 2914976, 5101208, 10202416, 20404832]

約数ペア:

[(1, 20404832), (2, 10202416), (4, 5101208), (7, 2914976), (8, 2550604), (14, 1457488), (16, 1275302), (28, 728744), (32, 637651), (56, 364372), (71, 287392), (112, 182186), (142, 143696), (224, 91093), (284, 71848), (497, 41056), (568, 35924), (994, 20528), (1136, 17962), (1283, 15904), (1988, 10264), (2272, 8981), (2566, 7952), (3976, 5132)]