18245660

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{6659}}^1$

素因数の和:6805

約数の個数: 24

約数和(自身を含む): 38601360

約数和(自身を除く): 20355700

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 6659, 13318, 26636, 33295, 66590, 133180, 912283, 1824566, 3649132, 4561415, 9122830, 18245660]

約数ペア:

[(1, 18245660), (2, 9122830), (4, 4561415), (5, 3649132), (10, 1824566), (20, 912283), (137, 133180), (274, 66590), (548, 33295), (685, 26636), (1370, 13318), (2740, 6659)]