256977501

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{139}}^1\times {\mathrm{463}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 380405760

約数和(自身を除く): 123428259

約数列:

[1, 3, 11, 33, 121, 139, 363, 417, 463, 1331, 1389, 1529, 3993, 4587, 5093, 15279, 16819, 50457, 56023, 64357, 168069, 185009, 193071, 555027, 616253, 707927, 1848759, 2123781, 7787197, 23361591, 85659167, 256977501]

約数ペア:

[(1, 256977501), (3, 85659167), (11, 23361591), (33, 7787197), (121, 2123781), (139, 1848759), (363, 707927), (417, 616253), (463, 555027), (1331, 193071), (1389, 185009), (1529, 168069), (3993, 64357), (4587, 56023), (5093, 50457), (15279, 16819)]