890480

素因数分解:

$2^4\times 5^1\times {\mathrm{11131}}^1$

素因数の和:11144

約数の個数: 20

約数和(自身を含む): 2070552

約数和(自身を除く): 1180072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11131, 22262, 44524, 55655, 89048, 111310, 178096, 222620, 445240, 890480]

約数ペア:

[(1, 890480), (2, 445240), (4, 222620), (5, 178096), (8, 111310), (10, 89048), (16, 55655), (20, 44524), (40, 22262), (80, 11131)]