25644040

素因数分解:

$2^3\times 5^1\times {\mathrm{641101}}^1$

素因数の和:641112

約数の個数: 16

約数和(自身を含む): 57699180

約数和(自身を除く): 32055140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641101, 1282202, 2564404, 3205505, 5128808, 6411010, 12822020, 25644040]

約数ペア:

[(1, 25644040), (2, 12822020), (4, 6411010), (5, 5128808), (8, 3205505), (10, 2564404), (20, 1282202), (40, 641101)]