19645580

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2017}}^1$

素因数の和:2513

約数の個数: 24

約数和(自身を含む): 41360928

約数和(自身を除く): 21715348

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2017, 2435, 4034, 4870, 8068, 9740, 10085, 20170, 40340, 982279, 1964558, 3929116, 4911395, 9822790, 19645580]

約数ペア:

[(1, 19645580), (2, 9822790), (4, 4911395), (5, 3929116), (10, 1964558), (20, 982279), (487, 40340), (974, 20170), (1948, 10085), (2017, 9740), (2435, 8068), (4034, 4870)]