257409481

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{797}}^1$

素因数の和:913

約数の個数: 32

約数和(自身を含む): 320221440

約数和(自身を除く): 62811959

約数列:

[1, 7, 29, 37, 43, 203, 259, 301, 797, 1073, 1247, 1591, 5579, 7511, 8729, 11137, 23113, 29489, 34271, 46139, 161791, 206423, 239897, 322973, 855181, 993859, 1268027, 5986267, 6957013, 8876189, 36772783, 257409481]

約数ペア:

[(1, 257409481), (7, 36772783), (29, 8876189), (37, 6957013), (43, 5986267), (203, 1268027), (259, 993859), (301, 855181), (797, 322973), (1073, 239897), (1247, 206423), (1591, 161791), (5579, 46139), (7511, 34271), (8729, 29489), (11137, 23113)]