20580755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2417}}^1$

素因数の和:2566

約数の個数: 16

約数和(自身を含む): 26810784

約数和(自身を除く): 6230029

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2417, 8515, 12085, 31421, 157105, 316627, 1583135, 4116151, 20580755]

約数ペア:

[(1, 20580755), (5, 4116151), (13, 1583135), (65, 316627), (131, 157105), (655, 31421), (1703, 12085), (2417, 8515)]