389980415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{373187}}^1$

素因数の和:373222

約数の個数: 16

約数和(自身を含む): 537390720

約数和(自身を除く): 147410305

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 373187, 1865935, 4105057, 7090553, 20525285, 35452765, 77996083, 389980415]

約数ペア:

[(1, 389980415), (5, 77996083), (11, 35452765), (19, 20525285), (55, 7090553), (95, 4105057), (209, 1865935), (1045, 373187)]