257674256

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{21107}}^1$

素因数の和:21231

約数の個数: 40

約数和(自身を含む): 575826240

約数和(自身を除く): 318151984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 3052, 6104, 12208, 21107, 42214, 84428, 147749, 168856, 295498, 337712, 590996, 1181992, 2300663, 2363984, 4601326, 9202652, 16104641, 18405304, 32209282, 36810608, 64418564, 128837128, 257674256]

約数ペア:

[(1, 257674256), (2, 128837128), (4, 64418564), (7, 36810608), (8, 32209282), (14, 18405304), (16, 16104641), (28, 9202652), (56, 4601326), (109, 2363984), (112, 2300663), (218, 1181992), (436, 590996), (763, 337712), (872, 295498), (1526, 168856), (1744, 147749), (3052, 84428), (6104, 42214), (12208, 21107)]