20200

素因数分解:

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

素因数の和:117

約数の個数: 24

約数和(自身を含む): 47430

約数和(自身を除く): 27230

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 200, 202, 404, 505, 808, 1010, 2020, 2525, 4040, 5050, 10100, 20200]

約数ペア:

[(1, 20200), (2, 10100), (4, 5050), (5, 4040), (8, 2525), (10, 2020), (20, 1010), (25, 808), (40, 505), (50, 404), (100, 202), (101, 200)]