78928740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{39863}}^1$

素因数の和:39889

約数の個数: 72

約数和(自身を含む): 261188928

約数和(自身を除く): 182260188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 39863, 79726, 119589, 159452, 199315, 239178, 358767, 398630, 438493, 478356, 597945, 717534, 797260, 876986, 1195890, 1315479, 1435068, 1753972, 1793835, 2192465, 2391780, 2630958, 3587670, 3946437, 4384930, 5261916, 6577395, 7175340, 7892874, 8769860, 13154790, 15785748, 19732185, 26309580, 39464370, 78928740]

約数ペア:

[(1, 78928740), (2, 39464370), (3, 26309580), (4, 19732185), (5, 15785748), (6, 13154790), (9, 8769860), (10, 7892874), (11, 7175340), (12, 6577395), (15, 5261916), (18, 4384930), (20, 3946437), (22, 3587670), (30, 2630958), (33, 2391780), (36, 2192465), (44, 1793835), (45, 1753972), (55, 1435068), (60, 1315479), (66, 1195890), (90, 876986), (99, 797260), (110, 717534), (132, 597945), (165, 478356), (180, 438493), (198, 398630), (220, 358767), (330, 239178), (396, 199315), (495, 159452), (660, 119589), (990, 79726), (1980, 39863)]