17795980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20693}}^1$

素因数の和:20745

約数の個数: 24

約数和(自身を含む): 38242512

約数和(自身を除く): 20446532

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 20693, 41386, 82772, 103465, 206930, 413860, 889799, 1779598, 3559196, 4448995, 8897990, 17795980]

約数ペア:

[(1, 17795980), (2, 8897990), (4, 4448995), (5, 3559196), (10, 1779598), (20, 889799), (43, 413860), (86, 206930), (172, 103465), (215, 82772), (430, 41386), (860, 20693)]