20617580

素因数分解:

$2^2\times 5^1\times {\mathrm{599}}^1\times {\mathrm{1721}}^1$

素因数の和:2329

約数の個数: 24

約数和(自身を含む): 43394400

約数和(自身を除く): 22776820

約数列:

[1, 2, 4, 5, 10, 20, 599, 1198, 1721, 2396, 2995, 3442, 5990, 6884, 8605, 11980, 17210, 34420, 1030879, 2061758, 4123516, 5154395, 10308790, 20617580]

約数ペア:

[(1, 20617580), (2, 10308790), (4, 5154395), (5, 4123516), (10, 2061758), (20, 1030879), (599, 34420), (1198, 17210), (1721, 11980), (2396, 8605), (2995, 6884), (3442, 5990)]