490816287

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{5441}}^1$

素因数の和:5720

約数の個数: 32

約数和(自身を含む): 786260160

約数和(自身を除く): 295443873

約数列:

[1, 3, 9, 13, 27, 39, 117, 257, 351, 771, 2313, 3341, 5441, 6939, 10023, 16323, 30069, 48969, 70733, 90207, 146907, 212199, 636597, 1398337, 1909791, 4195011, 12585033, 18178381, 37755099, 54535143, 163605429, 490816287]

約数ペア:

[(1, 490816287), (3, 163605429), (9, 54535143), (13, 37755099), (27, 18178381), (39, 12585033), (117, 4195011), (257, 1909791), (351, 1398337), (771, 636597), (2313, 212199), (3341, 146907), (5441, 90207), (6939, 70733), (10023, 48969), (16323, 30069)]