16018220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8999}}^1$

素因数の和:9097

約数の個数: 24

約数和(自身を含む): 34020000

約数和(自身を除く): 18001780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 8999, 17998, 35996, 44995, 89990, 179980, 800911, 1601822, 3203644, 4004555, 8009110, 16018220]

約数ペア:

[(1, 16018220), (2, 8009110), (4, 4004555), (5, 3203644), (10, 1601822), (20, 800911), (89, 179980), (178, 89990), (356, 44995), (445, 35996), (890, 17998), (1780, 8999)]