890111655

素因数分解:

$3^2\times 5^1\times {\mathrm{19780259}}^1$

素因数の和:19780270

約数の個数: 12

約数和(自身を含む): 1542860280

約数和(自身を除く): 652748625

約数列:

[1, 3, 5, 9, 15, 45, 19780259, 59340777, 98901295, 178022331, 296703885, 890111655]

約数ペア:

[(1, 890111655), (3, 296703885), (5, 178022331), (9, 98901295), (15, 59340777), (45, 19780259)]