25618220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18041}}^1$

素因数の和:18121

約数の個数: 24

約数和(自身を含む): 54559008

約数和(自身を除く): 28940788

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 18041, 36082, 72164, 90205, 180410, 360820, 1280911, 2561822, 5123644, 6404555, 12809110, 25618220]

約数ペア:

[(1, 25618220), (2, 12809110), (4, 6404555), (5, 5123644), (10, 2561822), (20, 1280911), (71, 360820), (142, 180410), (284, 90205), (355, 72164), (710, 36082), (1420, 18041)]