12804511450

素因数分解:

$2^1\times 5^2\times {\mathrm{401}}^1\times {\mathrm{638629}}^1$

素因数の和:639042

約数の個数: 24

約数和(自身を含む): 23875821180

約数和(自身を除く): 11071309730

約数列:

[1, 2, 5, 10, 25, 50, 401, 802, 2005, 4010, 10025, 20050, 638629, 1277258, 3193145, 6386290, 15965725, 31931450, 256090229, 512180458, 1280451145, 2560902290, 6402255725, 12804511450]

約数ペア:

[(1, 12804511450), (2, 6402255725), (5, 2560902290), (10, 1280451145), (25, 512180458), (50, 256090229), (401, 31931450), (802, 15965725), (2005, 6386290), (4010, 3193145), (10025, 1277258), (20050, 638629)]