20200510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{449}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 39852000

約数和(自身を除く): 19651490

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 409, 449, 818, 898, 2045, 2245, 4090, 4490, 4499, 4939, 8998, 9878, 22495, 24695, 44990, 49390, 183641, 367282, 918205, 1836410, 2020051, 4040102, 10100255, 20200510]

約数ペア:

[(1, 20200510), (2, 10100255), (5, 4040102), (10, 2020051), (11, 1836410), (22, 918205), (55, 367282), (110, 183641), (409, 49390), (449, 44990), (818, 24695), (898, 22495), (2045, 9878), (2245, 8998), (4090, 4939), (4490, 4499)]