20288788

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{30013}}^1$

素因数の和:30043

約数の個数: 18

約数和(自身を含む): 38447934

約数和(自身を除く): 18159146

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 30013, 60026, 120052, 390169, 780338, 1560676, 5072197, 10144394, 20288788]

約数ペア:

[(1, 20288788), (2, 10144394), (4, 5072197), (13, 1560676), (26, 780338), (52, 390169), (169, 120052), (338, 60026), (676, 30013)]