25816168

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 57784320

約数和(自身を除く): 31968152

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 71, 86, 142, 151, 172, 284, 301, 302, 344, 497, 568, 602, 604, 994, 1057, 1204, 1208, 1988, 2114, 2408, 3053, 3976, 4228, 6106, 6493, 8456, 10721, 12212, 12986, 21371, 21442, 24424, 25972, 42742, 42884, 45451, 51944, 75047, 85484, 85768, 90902, 150094, 170968, 181804, 300188, 363608, 461003, 600376, 922006, 1844012, 3227021, 3688024, 6454042, 12908084, 25816168]

約数ペア:

[(1, 25816168), (2, 12908084), (4, 6454042), (7, 3688024), (8, 3227021), (14, 1844012), (28, 922006), (43, 600376), (56, 461003), (71, 363608), (86, 300188), (142, 181804), (151, 170968), (172, 150094), (284, 90902), (301, 85768), (302, 85484), (344, 75047), (497, 51944), (568, 45451), (602, 42884), (604, 42742), (994, 25972), (1057, 24424), (1204, 21442), (1208, 21371), (1988, 12986), (2114, 12212), (2408, 10721), (3053, 8456), (3976, 6493), (4228, 6106)]