69656560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20249}}^1$

素因数の和:20305

約数の個数: 40

約数和(自身を含む): 165726000

約数和(自身を除く): 96069440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 20249, 40498, 80996, 101245, 161992, 202490, 323984, 404980, 809960, 870707, 1619920, 1741414, 3482828, 4353535, 6965656, 8707070, 13931312, 17414140, 34828280, 69656560]

約数ペア:

[(1, 69656560), (2, 34828280), (4, 17414140), (5, 13931312), (8, 8707070), (10, 6965656), (16, 4353535), (20, 3482828), (40, 1741414), (43, 1619920), (80, 870707), (86, 809960), (172, 404980), (215, 323984), (344, 202490), (430, 161992), (688, 101245), (860, 80996), (1720, 40498), (3440, 20249)]