2008498220

素因数分解:

$2^2\times 5^1\times {\mathrm{4999}}^1\times {\mathrm{20089}}^1$

素因数の和:25097

約数の個数: 24

約数和(自身を含む): 4218900000

約数和(自身を除く): 2210401780

約数列:

[1, 2, 4, 5, 10, 20, 4999, 9998, 19996, 20089, 24995, 40178, 49990, 80356, 99980, 100445, 200890, 401780, 100424911, 200849822, 401699644, 502124555, 1004249110, 2008498220]

約数ペア:

[(1, 2008498220), (2, 1004249110), (4, 502124555), (5, 401699644), (10, 200849822), (20, 100424911), (4999, 401780), (9998, 200890), (19996, 100445), (20089, 99980), (24995, 80356), (40178, 49990)]