20285885

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 25522560

約数和(自身を除く): 5236675

約数列:

[1, 5, 23, 115, 419, 421, 2095, 2105, 9637, 9683, 48185, 48415, 176399, 881995, 4057177, 20285885]

約数ペア:

[(1, 20285885), (5, 4057177), (23, 881995), (115, 176399), (419, 48415), (421, 48185), (2095, 9683), (2105, 9637)]