20780048

素因数分解:

$2^4\times {\mathrm{383}}^1\times {\mathrm{3391}}^1$

素因数の和:3782

約数の個数: 20

約数和(自身を含む): 40378368

約数和(自身を除く): 19598320

約数列:

[1, 2, 4, 8, 16, 383, 766, 1532, 3064, 3391, 6128, 6782, 13564, 27128, 54256, 1298753, 2597506, 5195012, 10390024, 20780048]

約数ペア:

[(1, 20780048), (2, 10390024), (4, 5195012), (8, 2597506), (16, 1298753), (383, 54256), (766, 27128), (1532, 13564), (3064, 6782), (3391, 6128)]