20407730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{291539}}^1$

素因数の和:291553

約数の個数: 16

約数和(自身を含む): 41981760

約数和(自身を除く): 21574030

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 291539, 583078, 1457695, 2040773, 2915390, 4081546, 10203865, 20407730]

約数ペア:

[(1, 20407730), (2, 10203865), (5, 4081546), (7, 2915390), (10, 2040773), (14, 1457695), (35, 583078), (70, 291539)]