261207488

素因数分解:

$2^6\times {\mathrm{31}}^3\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 56

約数和(自身を含む): 539520384

約数和(自身を除く): 278312896

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 137, 248, 274, 496, 548, 961, 992, 1096, 1922, 1984, 2192, 3844, 4247, 4384, 7688, 8494, 8768, 15376, 16988, 29791, 30752, 33976, 59582, 61504, 67952, 119164, 131657, 135904, 238328, 263314, 271808, 476656, 526628, 953312, 1053256, 1906624, 2106512, 4081367, 4213024, 8162734, 8426048, 16325468, 32650936, 65301872, 130603744, 261207488]

約数ペア:

[(1, 261207488), (2, 130603744), (4, 65301872), (8, 32650936), (16, 16325468), (31, 8426048), (32, 8162734), (62, 4213024), (64, 4081367), (124, 2106512), (137, 1906624), (248, 1053256), (274, 953312), (496, 526628), (548, 476656), (961, 271808), (992, 263314), (1096, 238328), (1922, 135904), (1984, 131657), (2192, 119164), (3844, 67952), (4247, 61504), (4384, 59582), (7688, 33976), (8494, 30752), (8768, 29791), (15376, 16988)]