8898220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4999}}^1$

素因数の和:5097

約数の個数: 24

約数和(自身を含む): 18900000

約数和(自身を除く): 10001780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 4999, 9998, 19996, 24995, 49990, 99980, 444911, 889822, 1779644, 2224555, 4449110, 8898220]

約数ペア:

[(1, 8898220), (2, 4449110), (4, 2224555), (5, 1779644), (10, 889822), (20, 444911), (89, 99980), (178, 49990), (356, 24995), (445, 19996), (890, 9998), (1780, 4999)]