81681408

素因数分解:

$2^{10}\times 3^2\times {\mathrm{8863}}^1$

素因数の和:8889

約数の個数: 66

約数和(自身を含む): 235879904

約数和(自身を除く): 154198496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 512, 576, 768, 1024, 1152, 1536, 2304, 3072, 4608, 8863, 9216, 17726, 26589, 35452, 53178, 70904, 79767, 106356, 141808, 159534, 212712, 283616, 319068, 425424, 567232, 638136, 850848, 1134464, 1276272, 1701696, 2268928, 2552544, 3403392, 4537856, 5105088, 6806784, 9075712, 10210176, 13613568, 20420352, 27227136, 40840704, 81681408]

約数ペア:

[(1, 81681408), (2, 40840704), (3, 27227136), (4, 20420352), (6, 13613568), (8, 10210176), (9, 9075712), (12, 6806784), (16, 5105088), (18, 4537856), (24, 3403392), (32, 2552544), (36, 2268928), (48, 1701696), (64, 1276272), (72, 1134464), (96, 850848), (128, 638136), (144, 567232), (192, 425424), (256, 319068), (288, 283616), (384, 212712), (512, 159534), (576, 141808), (768, 106356), (1024, 79767), (1152, 70904), (1536, 53178), (2304, 35452), (3072, 26589), (4608, 17726), (8863, 9216)]