28428620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129221}}^1$

素因数の和:129241

約数の個数: 24

約数和(自身を含む): 65127888

約数和(自身を除く): 36699268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129221, 258442, 516884, 646105, 1292210, 1421431, 2584420, 2842862, 5685724, 7107155, 14214310, 28428620]

約数ペア:

[(1, 28428620), (2, 14214310), (4, 7107155), (5, 5685724), (10, 2842862), (11, 2584420), (20, 1421431), (22, 1292210), (44, 646105), (55, 516884), (110, 258442), (220, 129221)]