638478784

素因数分解:

$2^6\times {\mathrm{127}}^1\times {\mathrm{78553}}^1$

素因数の和:78692

約数の個数: 28

約数和(自身を含む): 1276973824

約数和(自身を除く): 638495040

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 254, 508, 1016, 2032, 4064, 8128, 78553, 157106, 314212, 628424, 1256848, 2513696, 5027392, 9976231, 19952462, 39904924, 79809848, 159619696, 319239392, 638478784]

約数ペア:

[(1, 638478784), (2, 319239392), (4, 159619696), (8, 79809848), (16, 39904924), (32, 19952462), (64, 9976231), (127, 5027392), (254, 2513696), (508, 1256848), (1016, 628424), (2032, 314212), (4064, 157106), (8128, 78553)]