4357820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1999}}^1$

素因数の和:2117

約数の個数: 24

約数和(自身を含む): 9240000

約数和(自身を除く): 4882180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 1999, 2180, 3998, 7996, 9995, 19990, 39980, 217891, 435782, 871564, 1089455, 2178910, 4357820]

約数ペア:

[(1, 4357820), (2, 2178910), (4, 1089455), (5, 871564), (10, 435782), (20, 217891), (109, 39980), (218, 19990), (436, 9995), (545, 7996), (1090, 3998), (1999, 2180)]