278329689

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 490311360

約数和(自身を除く): 211981671

約数列:

[1, 3, 9, 11, 19, 27, 33, 41, 57, 81, 99, 123, 171, 209, 297, 369, 401, 451, 513, 627, 779, 891, 1107, 1203, 1353, 1539, 1881, 2337, 3321, 3609, 4059, 4411, 5643, 7011, 7619, 8569, 10827, 12177, 13233, 16441, 16929, 21033, 22857, 25707, 32481, 36531, 39699, 49323, 63099, 68571, 77121, 83809, 119097, 147969, 180851, 205713, 231363, 251427, 312379, 357291, 443907, 542553, 617139, 694089, 754281, 937137, 1331721, 1627659, 2262843, 2811411, 3436169, 4882977, 6788529, 8434233, 10308507, 14648931, 25302699, 30925521, 92776563, 278329689]

約数ペア:

[(1, 278329689), (3, 92776563), (9, 30925521), (11, 25302699), (19, 14648931), (27, 10308507), (33, 8434233), (41, 6788529), (57, 4882977), (81, 3436169), (99, 2811411), (123, 2262843), (171, 1627659), (209, 1331721), (297, 937137), (369, 754281), (401, 694089), (451, 617139), (513, 542553), (627, 443907), (779, 357291), (891, 312379), (1107, 251427), (1203, 231363), (1353, 205713), (1539, 180851), (1881, 147969), (2337, 119097), (3321, 83809), (3609, 77121), (4059, 68571), (4411, 63099), (5643, 49323), (7011, 39699), (7619, 36531), (8569, 32481), (10827, 25707), (12177, 22857), (13233, 21033), (16441, 16929)]