42090945940

素因数分解:

$2^2\times 5^1\times {\mathrm{2104547297}}^1$

素因数の和:2104547306

約数の個数: 12

約数和(自身を含む): 88390986516

約数和(自身を除く): 46300040576

約数列:

[1, 2, 4, 5, 10, 20, 2104547297, 4209094594, 8418189188, 10522736485, 21045472970, 42090945940]

約数ペア:

[(1, 42090945940), (2, 21045472970), (4, 10522736485), (5, 8418189188), (10, 4209094594), (20, 2104547297)]