8899420

素因数分解:

$2^2\times 5^1\times {\mathrm{444971}}^1$

素因数の和:444980

約数の個数: 12

約数和(自身を含む): 18688824

約数和(自身を除く): 9789404

約数列:

[1, 2, 4, 5, 10, 20, 444971, 889942, 1779884, 2224855, 4449710, 8899420]

約数ペア:

[(1, 8899420), (2, 4449710), (4, 2224855), (5, 1779884), (10, 889942), (20, 444971)]