20845130

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{90631}}^1$

素因数の和:90661

約数の個数: 16

約数和(自身を含む): 39153024

約数和(自身を除く): 18307894

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 90631, 181262, 453155, 906310, 2084513, 4169026, 10422565, 20845130]

約数ペア:

[(1, 20845130), (2, 10422565), (5, 4169026), (10, 2084513), (23, 906310), (46, 453155), (115, 181262), (230, 90631)]