18988660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55849}}^1$

素因数の和:55875

約数の個数: 24

約数和(自身を含む): 42222600

約数和(自身を除く): 23233940

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55849, 111698, 223396, 279245, 558490, 949433, 1116980, 1898866, 3797732, 4747165, 9494330, 18988660]

約数ペア:

[(1, 18988660), (2, 9494330), (4, 4747165), (5, 3797732), (10, 1898866), (17, 1116980), (20, 949433), (34, 558490), (68, 279245), (85, 223396), (170, 111698), (340, 55849)]