640945314

素因数分解:

$2^1\times 3^2\times {\mathrm{277}}^1\times {\mathrm{128549}}^1$

素因数の和:128834

約数の個数: 24

約数和(自身を含む): 1393739100

約数和(自身を除く): 752793786

約数列:

[1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493, 4986, 128549, 257098, 385647, 771294, 1156941, 2313882, 35608073, 71216146, 106824219, 213648438, 320472657, 640945314]

約数ペア:

[(1, 640945314), (2, 320472657), (3, 213648438), (6, 106824219), (9, 71216146), (18, 35608073), (277, 2313882), (554, 1156941), (831, 771294), (1662, 385647), (2493, 257098), (4986, 128549)]