638543308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1279}}^1\times {\mathrm{9601}}^1$

素因数の和:10897

約数の個数: 24

約数和(自身を含む): 1204474880

約数和(自身を除く): 565931572

約数列:

[1, 2, 4, 13, 26, 52, 1279, 2558, 5116, 9601, 16627, 19202, 33254, 38404, 66508, 124813, 249626, 499252, 12279679, 24559358, 49118716, 159635827, 319271654, 638543308]

約数ペア:

[(1, 638543308), (2, 319271654), (4, 159635827), (13, 49118716), (26, 24559358), (52, 12279679), (1279, 499252), (2558, 249626), (5116, 124813), (9601, 66508), (16627, 38404), (19202, 33254)]