20542781945

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13649689}}^1$

素因数の和:13649744

約数の個数: 16

約数和(自身を含む): 28828145280

約数和(自身を除く): 8285363335

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 13649689, 68248445, 95547823, 477739115, 586936627, 2934683135, 4108556389, 20542781945]

約数ペア:

[(1, 20542781945), (5, 4108556389), (7, 2934683135), (35, 586936627), (43, 477739115), (215, 95547823), (301, 68248445), (1505, 13649689)]