258329449

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 313479936

約数和(自身を除く): 55150487

約数列:

[1, 7, 37, 61, 83, 197, 259, 427, 581, 1379, 2257, 3071, 5063, 7289, 12017, 15799, 16351, 21497, 35441, 51023, 84119, 114457, 187331, 444629, 604987, 997411, 1311317, 3112403, 4234909, 6981877, 36904207, 258329449]

約数ペア:

[(1, 258329449), (7, 36904207), (37, 6981877), (61, 4234909), (83, 3112403), (197, 1311317), (259, 997411), (427, 604987), (581, 444629), (1379, 187331), (2257, 114457), (3071, 84119), (5063, 51023), (7289, 35441), (12017, 21497), (15799, 16351)]