18903620

素因数分解:

$2^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1279}}^1$

素因数の和:2027

約数の個数: 24

約数和(自身を含む): 39782400

約数和(自身を除く): 20878780

約数列:

[1, 2, 4, 5, 10, 20, 739, 1279, 1478, 2558, 2956, 3695, 5116, 6395, 7390, 12790, 14780, 25580, 945181, 1890362, 3780724, 4725905, 9451810, 18903620]

約数ペア:

[(1, 18903620), (2, 9451810), (4, 4725905), (5, 3780724), (10, 1890362), (20, 945181), (739, 25580), (1279, 14780), (1478, 12790), (2558, 7390), (2956, 6395), (3695, 5116)]