90990190

素因数分解:

$2^1\times 5^1\times {\mathrm{919}}^1\times {\mathrm{9901}}^1$

素因数の和:10827

約数の個数: 16

約数和(自身を含む): 163977120

約数和(自身を除く): 72986930

約数列:

[1, 2, 5, 10, 919, 1838, 4595, 9190, 9901, 19802, 49505, 99010, 9099019, 18198038, 45495095, 90990190]

約数ペア:

[(1, 90990190), (2, 45495095), (5, 18198038), (10, 9099019), (919, 99010), (1838, 49505), (4595, 19802), (9190, 9901)]