1289444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:335

約数の個数: 24

約数和(自身を含む): 2461368

約数和(自身を除く): 1171924

約数列:

[1, 2, 4, 13, 26, 52, 137, 181, 274, 362, 548, 724, 1781, 2353, 3562, 4706, 7124, 9412, 24797, 49594, 99188, 322361, 644722, 1289444]

約数ペア:

[(1, 1289444), (2, 644722), (4, 322361), (13, 99188), (26, 49594), (52, 24797), (137, 9412), (181, 7124), (274, 4706), (362, 3562), (548, 2353), (724, 1781)]