26400040

素因数分解:

$2^3\times 5^1\times {\mathrm{660001}}^1$

素因数の和:660012

約数の個数: 16

約数和(自身を含む): 59400180

約数和(自身を除く): 33000140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 660001, 1320002, 2640004, 3300005, 5280008, 6600010, 13200020, 26400040]

約数ペア:

[(1, 26400040), (2, 13200020), (4, 6600010), (5, 5280008), (8, 3300005), (10, 2640004), (20, 1320002), (40, 660001)]