20378095

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:522

約数の個数: 16

約数和(自身を含む): 24948000

約数和(自身を除く): 4569905

約数列:

[1, 5, 109, 139, 269, 545, 695, 1345, 15151, 29321, 37391, 75755, 146605, 186955, 4075619, 20378095]

約数ペア:

[(1, 20378095), (5, 4075619), (109, 186955), (139, 146605), (269, 75755), (545, 37391), (695, 29321), (1345, 15151)]