20128490090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22616281}}^1$

素因数の和:22616377

約数の個数: 16

約数和(自身を含む): 36638376840

約数和(自身を除く): 16509886750

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22616281, 45232562, 113081405, 226162810, 2012849009, 4025698018, 10064245045, 20128490090]

約数ペア:

[(1, 20128490090), (2, 10064245045), (5, 4025698018), (10, 2012849009), (89, 226162810), (178, 113081405), (445, 45232562), (890, 22616281)]