245479905

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:691

約数の個数: 96

約数和(自身を含む): 500797440

約数和(自身を除く): 255317535

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 43, 45, 55, 57, 95, 99, 129, 165, 171, 209, 215, 285, 387, 473, 495, 607, 627, 645, 817, 855, 1045, 1419, 1821, 1881, 1935, 2365, 2451, 3035, 3135, 4085, 4257, 5463, 6677, 7095, 7353, 8987, 9105, 9405, 11533, 12255, 20031, 21285, 26101, 26961, 27315, 33385, 34599, 36765, 44935, 57665, 60093, 78303, 80883, 100155, 103797, 126863, 130505, 134805, 172995, 234909, 287111, 300465, 380589, 391515, 404415, 495919, 518985, 634315, 861333, 1141767, 1174545, 1435555, 1487757, 1902945, 2479595, 2583999, 4306665, 4463271, 5455109, 5708835, 7438785, 12919995, 16365327, 22316355, 27275545, 49095981, 81826635, 245479905]

約数ペア:

[(1, 245479905), (3, 81826635), (5, 49095981), (9, 27275545), (11, 22316355), (15, 16365327), (19, 12919995), (33, 7438785), (43, 5708835), (45, 5455109), (55, 4463271), (57, 4306665), (95, 2583999), (99, 2479595), (129, 1902945), (165, 1487757), (171, 1435555), (209, 1174545), (215, 1141767), (285, 861333), (387, 634315), (473, 518985), (495, 495919), (607, 404415), (627, 391515), (645, 380589), (817, 300465), (855, 287111), (1045, 234909), (1419, 172995), (1821, 134805), (1881, 130505), (1935, 126863), (2365, 103797), (2451, 100155), (3035, 80883), (3135, 78303), (4085, 60093), (4257, 57665), (5463, 44935), (6677, 36765), (7095, 34599), (7353, 33385), (8987, 27315), (9105, 26961), (9405, 26101), (11533, 21285), (12255, 20031)]