18981860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55829}}^1$

素因数の和:55855

約数の個数: 24

約数和(自身を含む): 42207480

約数和(自身を除く): 23225620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55829, 111658, 223316, 279145, 558290, 949093, 1116580, 1898186, 3796372, 4745465, 9490930, 18981860]

約数ペア:

[(1, 18981860), (2, 9490930), (4, 4745465), (5, 3796372), (10, 1898186), (17, 1116580), (20, 949093), (34, 558290), (68, 279145), (85, 223316), (170, 111658), (340, 55829)]