257518499

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1123}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 326301696

約数和(自身を除く): 68783197

約数列:

[1, 7, 17, 41, 47, 119, 287, 329, 697, 799, 1123, 1927, 4879, 5593, 7861, 13489, 19091, 32759, 46043, 52781, 133637, 229313, 322301, 369467, 782731, 897277, 2164021, 5479117, 6280939, 15148147, 36788357, 257518499]

約数ペア:

[(1, 257518499), (7, 36788357), (17, 15148147), (41, 6280939), (47, 5479117), (119, 2164021), (287, 897277), (329, 782731), (697, 369467), (799, 322301), (1123, 229313), (1927, 133637), (4879, 52781), (5593, 46043), (7861, 32759), (13489, 19091)]