20272085

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{431}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 25505280

約数和(自身を除く): 5233195

約数列:

[1, 5, 23, 115, 409, 431, 2045, 2155, 9407, 9913, 47035, 49565, 176279, 881395, 4054417, 20272085]

約数ペア:

[(1, 20272085), (5, 4054417), (23, 881395), (115, 176279), (409, 49565), (431, 47035), (2045, 9913), (2155, 9407)]