20519330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157841}}^1$

素因数の和:157861

約数の個数: 16

約数和(自身を含む): 39776184

約数和(自身を除く): 19256854

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157841, 315682, 789205, 1578410, 2051933, 4103866, 10259665, 20519330]

約数ペア:

[(1, 20519330), (2, 10259665), (5, 4103866), (10, 2051933), (13, 1578410), (26, 789205), (65, 315682), (130, 157841)]