20505742

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{1999}}^1$

素因数の和:2247

約数の個数: 16

約数和(自身を含む): 32256000

約数和(自身を除く): 11750258

約数列:

[1, 2, 23, 46, 223, 446, 1999, 3998, 5129, 10258, 45977, 91954, 445777, 891554, 10252871, 20505742]

約数ペア:

[(1, 20505742), (2, 10252871), (23, 891554), (46, 445777), (223, 91954), (446, 45977), (1999, 10258), (3998, 5129)]