890405988

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{1725593}}^1$

素因数の和:1725643

約数の個数: 24

約数和(自身を含む): 2125931808

約数和(自身を除く): 1235525820

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 1725593, 3451186, 5176779, 6902372, 10353558, 20707116, 74200499, 148400998, 222601497, 296801996, 445202994, 890405988]

約数ペア:

[(1, 890405988), (2, 445202994), (3, 296801996), (4, 222601497), (6, 148400998), (12, 74200499), (43, 20707116), (86, 10353558), (129, 6902372), (172, 5176779), (258, 3451186), (516, 1725593)]