20405936

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41141}}^1$

素因数の和:41180

約数の個数: 20

約数和(自身を含む): 40812864

約数和(自身を除く): 20406928

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 41141, 82282, 164564, 329128, 658256, 1275371, 2550742, 5101484, 10202968, 20405936]

約数ペア:

[(1, 20405936), (2, 10202968), (4, 5101484), (8, 2550742), (16, 1275371), (31, 658256), (62, 329128), (124, 164564), (248, 82282), (496, 41141)]