20145548

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1907}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 37396800

約数和(自身を除く): 17251252

約数列:

[1, 2, 4, 19, 38, 76, 139, 278, 556, 1907, 2641, 3814, 5282, 7628, 10564, 36233, 72466, 144932, 265073, 530146, 1060292, 5036387, 10072774, 20145548]

約数ペア:

[(1, 20145548), (2, 10072774), (4, 5036387), (19, 1060292), (38, 530146), (76, 265073), (139, 144932), (278, 72466), (556, 36233), (1907, 10564), (2641, 7628), (3814, 5282)]