257042920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{50599}}^1$

素因数の和:50737

約数の個数: 32

約数和(自身を含む): 582912000

約数和(自身を除く): 325869080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 50599, 101198, 202396, 252995, 404792, 505990, 1011980, 2023960, 6426073, 12852146, 25704292, 32130365, 51408584, 64260730, 128521460, 257042920]

約数ペア:

[(1, 257042920), (2, 128521460), (4, 64260730), (5, 51408584), (8, 32130365), (10, 25704292), (20, 12852146), (40, 6426073), (127, 2023960), (254, 1011980), (508, 505990), (635, 404792), (1016, 252995), (1270, 202396), (2540, 101198), (5080, 50599)]