28407708

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:967

約数の個数: 72

約数和(自身を含む): 82759040

約数和(自身を除く): 54351332

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 139, 252, 278, 417, 556, 811, 834, 973, 1251, 1622, 1668, 1946, 2433, 2502, 2919, 3244, 3892, 4866, 5004, 5677, 5838, 7299, 8757, 9732, 11354, 11676, 14598, 17031, 17514, 22708, 29196, 34062, 35028, 51093, 68124, 102186, 112729, 204372, 225458, 338187, 450916, 676374, 789103, 1014561, 1352748, 1578206, 2029122, 2367309, 3156412, 4058244, 4734618, 7101927, 9469236, 14203854, 28407708]

約数ペア:

[(1, 28407708), (2, 14203854), (3, 9469236), (4, 7101927), (6, 4734618), (7, 4058244), (9, 3156412), (12, 2367309), (14, 2029122), (18, 1578206), (21, 1352748), (28, 1014561), (36, 789103), (42, 676374), (63, 450916), (84, 338187), (126, 225458), (139, 204372), (252, 112729), (278, 102186), (417, 68124), (556, 51093), (811, 35028), (834, 34062), (973, 29196), (1251, 22708), (1622, 17514), (1668, 17031), (1946, 14598), (2433, 11676), (2502, 11354), (2919, 9732), (3244, 8757), (3892, 7299), (4866, 5838), (5004, 5677)]