7780318

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 15168384

約数和(自身を除く): 7388066

約数列:

[1, 2, 7, 13, 14, 26, 31, 49, 62, 91, 98, 182, 197, 217, 394, 403, 434, 637, 806, 1274, 1379, 1519, 2561, 2758, 2821, 3038, 5122, 5642, 6107, 9653, 12214, 17927, 19306, 19747, 35854, 39494, 42749, 79391, 85498, 125489, 158782, 250978, 299243, 555737, 598486, 1111474, 3890159, 7780318]

約数ペア:

[(1, 7780318), (2, 3890159), (7, 1111474), (13, 598486), (14, 555737), (26, 299243), (31, 250978), (49, 158782), (62, 125489), (91, 85498), (98, 79391), (182, 42749), (197, 39494), (217, 35854), (394, 19747), (403, 19306), (434, 17927), (637, 12214), (806, 9653), (1274, 6107), (1379, 5642), (1519, 5122), (2561, 3038), (2758, 2821)]