20977060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80681}}^1$

素因数の和:80703

約数の個数: 24

約数和(自身を含む): 47441016

約数和(自身を除く): 26463956

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 80681, 161362, 322724, 403405, 806810, 1048853, 1613620, 2097706, 4195412, 5244265, 10488530, 20977060]

約数ペア:

[(1, 20977060), (2, 10488530), (4, 5244265), (5, 4195412), (10, 2097706), (13, 1613620), (20, 1048853), (26, 806810), (52, 403405), (65, 322724), (130, 161362), (260, 80681)]