80910790

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{90911}}^1$

素因数の和:91007

約数の個数: 16

約数和(自身を含む): 147277440

約数和(自身を除く): 66366650

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 90911, 181822, 454555, 909110, 8091079, 16182158, 40455395, 80910790]

約数ペア:

[(1, 80910790), (2, 40455395), (5, 16182158), (10, 8091079), (89, 909110), (178, 454555), (445, 181822), (890, 90911)]