291265856

素因数分解:

$2^6\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9157}}^1$

素因数の和:9247

約数の個数: 56

約数和(自身を含む): 669926016

約数和(自身を除く): 378660160

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 142, 224, 284, 448, 497, 568, 994, 1136, 1988, 2272, 3976, 4544, 7952, 9157, 15904, 18314, 31808, 36628, 64099, 73256, 128198, 146512, 256396, 293024, 512792, 586048, 650147, 1025584, 1300294, 2051168, 2600588, 4102336, 4551029, 5201176, 9102058, 10402352, 18204116, 20804704, 36408232, 41609408, 72816464, 145632928, 291265856]

約数ペア:

[(1, 291265856), (2, 145632928), (4, 72816464), (7, 41609408), (8, 36408232), (14, 20804704), (16, 18204116), (28, 10402352), (32, 9102058), (56, 5201176), (64, 4551029), (71, 4102336), (112, 2600588), (142, 2051168), (224, 1300294), (284, 1025584), (448, 650147), (497, 586048), (568, 512792), (994, 293024), (1136, 256396), (1988, 146512), (2272, 128198), (3976, 73256), (4544, 64099), (7952, 36628), (9157, 31808), (15904, 18314)]