20320456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{195389}}^1$

素因数の和:195408

約数の個数: 16

約数和(自身を含む): 41031900

約数和(自身を除く): 20711444

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 195389, 390778, 781556, 1563112, 2540057, 5080114, 10160228, 20320456]

約数ペア:

[(1, 20320456), (2, 10160228), (4, 5080114), (8, 2540057), (13, 1563112), (26, 781556), (52, 390778), (104, 195389)]