20529665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2411}}^1$

素因数の和:2560

約数の個数: 16

約数和(自身を含む): 26744256

約数和(自身を除く): 6214591

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2411, 8515, 12055, 31343, 156715, 315841, 1579205, 4105933, 20529665]

約数ペア:

[(1, 20529665), (5, 4105933), (13, 1579205), (65, 315841), (131, 156715), (655, 31343), (1703, 12055), (2411, 8515)]