18135280

素因数分解:

$2^4\times 5^1\times {\mathrm{226691}}^1$

素因数の和:226704

約数の個数: 20

約数和(自身を含む): 42164712

約数和(自身を除く): 24029432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226691, 453382, 906764, 1133455, 1813528, 2266910, 3627056, 4533820, 9067640, 18135280]

約数ペア:

[(1, 18135280), (2, 9067640), (4, 4533820), (5, 3627056), (8, 2266910), (10, 1813528), (16, 1133455), (20, 906764), (40, 453382), (80, 226691)]