20882480

素因数分解:

$2^4\times 5^1\times {\mathrm{261031}}^1$

素因数の和:261044

約数の個数: 20

約数和(自身を含む): 48551952

約数和(自身を除く): 27669472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261031, 522062, 1044124, 1305155, 2088248, 2610310, 4176496, 5220620, 10441240, 20882480]

約数ペア:

[(1, 20882480), (2, 10441240), (4, 5220620), (5, 4176496), (8, 2610310), (10, 2088248), (16, 1305155), (20, 1044124), (40, 522062), (80, 261031)]