347440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 834768

約数和(自身を除く): 487328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 101, 172, 202, 215, 344, 404, 430, 505, 688, 808, 860, 1010, 1616, 1720, 2020, 3440, 4040, 4343, 8080, 8686, 17372, 21715, 34744, 43430, 69488, 86860, 173720, 347440]

約数ペア:

[(1, 347440), (2, 173720), (4, 86860), (5, 69488), (8, 43430), (10, 34744), (16, 21715), (20, 17372), (40, 8686), (43, 8080), (80, 4343), (86, 4040), (101, 3440), (172, 2020), (202, 1720), (215, 1616), (344, 1010), (404, 860), (430, 808), (505, 688)]