2000974760

素因数分解:

$2^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{40903}}^1$

素因数の和:42137

約数の個数: 32

約数和(自身を含む): 4505984640

約数和(自身を除く): 2505009880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1223, 2446, 4892, 6115, 9784, 12230, 24460, 40903, 48920, 81806, 163612, 204515, 327224, 409030, 818060, 1636120, 50024369, 100048738, 200097476, 250121845, 400194952, 500243690, 1000487380, 2000974760]

約数ペア:

[(1, 2000974760), (2, 1000487380), (4, 500243690), (5, 400194952), (8, 250121845), (10, 200097476), (20, 100048738), (40, 50024369), (1223, 1636120), (2446, 818060), (4892, 409030), (6115, 327224), (9784, 204515), (12230, 163612), (24460, 81806), (40903, 48920)]