280265713

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 376072320

約数和(自身を除く): 95806607

約数列:

[1, 7, 13, 19, 37, 91, 133, 169, 247, 259, 337, 481, 703, 1183, 1729, 2359, 3211, 3367, 4381, 4921, 6253, 6403, 9139, 12469, 22477, 30667, 43771, 44821, 56953, 63973, 83239, 87283, 118807, 162097, 236911, 398671, 582673, 831649, 1082107, 1134679, 1658377, 2107261, 3079843, 7574749, 14750827, 21558901, 40037959, 280265713]

約数ペア:

[(1, 280265713), (7, 40037959), (13, 21558901), (19, 14750827), (37, 7574749), (91, 3079843), (133, 2107261), (169, 1658377), (247, 1134679), (259, 1082107), (337, 831649), (481, 582673), (703, 398671), (1183, 236911), (1729, 162097), (2359, 118807), (3211, 87283), (3367, 83239), (4381, 63973), (4921, 56953), (6253, 44821), (6403, 43771), (9139, 30667), (12469, 22477)]