2017659640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{309457}}^1$

素因数の和:309631

約数の個数: 32

約数和(自身を含む): 4567600080

約数和(自身を除く): 2549940440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 309457, 618914, 1237828, 1547285, 2475656, 3094570, 6189140, 12378280, 50441491, 100882982, 201765964, 252207455, 403531928, 504414910, 1008829820, 2017659640]

約数ペア:

[(1, 2017659640), (2, 1008829820), (4, 504414910), (5, 403531928), (8, 252207455), (10, 201765964), (20, 100882982), (40, 50441491), (163, 12378280), (326, 6189140), (652, 3094570), (815, 2475656), (1304, 1547285), (1630, 1237828), (3260, 618914), (6520, 309457)]