18897220

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2467}}^1$

素因数の和:2859

約数の個数: 24

約数和(自身を含む): 39803904

約数和(自身を除く): 20906684

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 2467, 3830, 4934, 7660, 9868, 12335, 24670, 49340, 944861, 1889722, 3779444, 4724305, 9448610, 18897220]

約数ペア:

[(1, 18897220), (2, 9448610), (4, 4724305), (5, 3779444), (10, 1889722), (20, 944861), (383, 49340), (766, 24670), (1532, 12335), (1915, 9868), (2467, 7660), (3830, 4934)]