256639266

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3931}}^1$

素因数の和:3989

約数の個数: 80

約数和(自身を含む): 639437568

約数和(自身を除く): 382798302

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 62, 78, 81, 93, 117, 162, 186, 234, 279, 351, 403, 558, 702, 806, 837, 1053, 1209, 1674, 2106, 2418, 2511, 3627, 3931, 5022, 7254, 7862, 10881, 11793, 21762, 23586, 32643, 35379, 51103, 65286, 70758, 102206, 106137, 121861, 153309, 212274, 243722, 306618, 318411, 365583, 459927, 636822, 731166, 919854, 1096749, 1379781, 1584193, 2193498, 2759562, 3168386, 3290247, 4139343, 4752579, 6580494, 8278686, 9505158, 9870741, 14257737, 19741482, 28515474, 42773211, 85546422, 128319633, 256639266]

約数ペア:

[(1, 256639266), (2, 128319633), (3, 85546422), (6, 42773211), (9, 28515474), (13, 19741482), (18, 14257737), (26, 9870741), (27, 9505158), (31, 8278686), (39, 6580494), (54, 4752579), (62, 4139343), (78, 3290247), (81, 3168386), (93, 2759562), (117, 2193498), (162, 1584193), (186, 1379781), (234, 1096749), (279, 919854), (351, 731166), (403, 636822), (558, 459927), (702, 365583), (806, 318411), (837, 306618), (1053, 243722), (1209, 212274), (1674, 153309), (2106, 121861), (2418, 106137), (2511, 102206), (3627, 70758), (3931, 65286), (5022, 51103), (7254, 35379), (7862, 32643), (10881, 23586), (11793, 21762)]