290387127

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{461}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 419569920

約数和(自身を除く): 129182793

約数列:

[1, 3, 19, 43, 57, 129, 257, 461, 771, 817, 1383, 2451, 4883, 8759, 11051, 14649, 19823, 26277, 33153, 59469, 118477, 209969, 355431, 376637, 629907, 1129911, 2251063, 5094511, 6753189, 15283533, 96795709, 290387127]

約数ペア:

[(1, 290387127), (3, 96795709), (19, 15283533), (43, 6753189), (57, 5094511), (129, 2251063), (257, 1129911), (461, 629907), (771, 376637), (817, 355431), (1383, 209969), (2451, 118477), (4883, 59469), (8759, 33153), (11051, 26277), (14649, 19823)]