138260660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{406649}}^1$

素因数の和:406675

約数の個数: 24

約数和(自身を含む): 307427400

約数和(自身を除く): 169166740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 406649, 813298, 1626596, 2033245, 4066490, 6913033, 8132980, 13826066, 27652132, 34565165, 69130330, 138260660]

約数ペア:

[(1, 138260660), (2, 69130330), (4, 34565165), (5, 27652132), (10, 13826066), (17, 8132980), (20, 6913033), (34, 4066490), (68, 2033245), (85, 1626596), (170, 813298), (340, 406649)]