20880274

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{2281}}^1$

素因数の和:2505

約数の個数: 16

約数和(自身を含む): 32860800

約数和(自身を除く): 11980526

約数列:

[1, 2, 23, 46, 199, 398, 2281, 4562, 4577, 9154, 52463, 104926, 453919, 907838, 10440137, 20880274]

約数ペア:

[(1, 20880274), (2, 10440137), (23, 907838), (46, 453919), (199, 104926), (398, 52463), (2281, 9154), (4562, 4577)]