20491510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157627}}^1$

素因数の和:157647

約数の個数: 16

約数和(自身を含む): 39722256

約数和(自身を除く): 19230746

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157627, 315254, 788135, 1576270, 2049151, 4098302, 10245755, 20491510]

約数ペア:

[(1, 20491510), (2, 10245755), (5, 4098302), (10, 2049151), (13, 1576270), (26, 788135), (65, 315254), (130, 157627)]