173720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:155

約数の個数: 32

約数和(自身を含む): 403920

約数和(自身を除く): 230200

約数列:

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

約数ペア:

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