2143220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1061}}^1$

素因数の和:1171

約数の個数: 24

約数和(自身を含む): 4549608

約数和(自身を除く): 2406388

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1061, 2020, 2122, 4244, 5305, 10610, 21220, 107161, 214322, 428644, 535805, 1071610, 2143220]

約数ペア:

[(1, 2143220), (2, 1071610), (4, 535805), (5, 428644), (10, 214322), (20, 107161), (101, 21220), (202, 10610), (404, 5305), (505, 4244), (1010, 2122), (1061, 2020)]