8890160

素因数分解:

$2^4\times 5^1\times {\mathrm{111127}}^1$

素因数の和:111140

約数の個数: 20

約数和(自身を含む): 20669808

約数和(自身を除く): 11779648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 111127, 222254, 444508, 555635, 889016, 1111270, 1778032, 2222540, 4445080, 8890160]

約数ペア:

[(1, 8890160), (2, 4445080), (4, 2222540), (5, 1778032), (8, 1111270), (10, 889016), (16, 555635), (20, 444508), (40, 222254), (80, 111127)]