820664

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{607}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 1668960

約数和(自身を除く): 848296

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 607, 676, 1214, 1352, 2428, 4856, 7891, 15782, 31564, 63128, 102583, 205166, 410332, 820664]

約数ペア:

[(1, 820664), (2, 410332), (4, 205166), (8, 102583), (13, 63128), (26, 31564), (52, 15782), (104, 7891), (169, 4856), (338, 2428), (607, 1352), (676, 1214)]