257796784

素因数分解:

$2^4\times 7^1\times {\mathrm{2301757}}^1$

素因数の和:2301772

約数の個数: 20

約数和(自身を含む): 570835984

約数和(自身を除く): 313039200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2301757, 4603514, 9207028, 16112299, 18414056, 32224598, 36828112, 64449196, 128898392, 257796784]

約数ペア:

[(1, 257796784), (2, 128898392), (4, 64449196), (7, 36828112), (8, 32224598), (14, 18414056), (16, 16112299), (28, 9207028), (56, 4603514), (112, 2301757)]