20262940

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2903}}^1$

素因数の和:3261

約数の個数: 24

約数和(自身を含む): 42688800

約数和(自身を除く): 22425860

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 2903, 3490, 5806, 6980, 11612, 14515, 29030, 58060, 1013147, 2026294, 4052588, 5065735, 10131470, 20262940]

約数ペア:

[(1, 20262940), (2, 10131470), (4, 5065735), (5, 4052588), (10, 2026294), (20, 1013147), (349, 58060), (698, 29030), (1396, 14515), (1745, 11612), (2903, 6980), (3490, 5806)]