25880620

素因数分解:

$2^2\times 5^1\times {\mathrm{1294031}}^1$

素因数の和:1294040

約数の個数: 12

約数和(自身を含む): 54349344

約数和(自身を除く): 28468724

約数列:

[1, 2, 4, 5, 10, 20, 1294031, 2588062, 5176124, 6470155, 12940310, 25880620]

約数ペア:

[(1, 25880620), (2, 12940310), (4, 6470155), (5, 5176124), (10, 2588062), (20, 1294031)]