20045972

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1999}}^1$

素因数の和:2135

約数の個数: 24

約数和(自身を含む): 36960000

約数和(自身を除く): 16914028

約数列:

[1, 2, 4, 23, 46, 92, 109, 218, 436, 1999, 2507, 3998, 5014, 7996, 10028, 45977, 91954, 183908, 217891, 435782, 871564, 5011493, 10022986, 20045972]

約数ペア:

[(1, 20045972), (2, 10022986), (4, 5011493), (23, 871564), (46, 435782), (92, 217891), (109, 183908), (218, 91954), (436, 45977), (1999, 10028), (2507, 7996), (3998, 5014)]