20790787580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25354619}}^1$

素因数の和:25354669

約数の個数: 24

約数和(自身を含む): 44725549680

約数和(自身を除く): 23934762100

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25354619, 50709238, 101418476, 126773095, 253546190, 507092380, 1039539379, 2079078758, 4158157516, 5197696895, 10395393790, 20790787580]

約数ペア:

[(1, 20790787580), (2, 10395393790), (4, 5197696895), (5, 4158157516), (10, 2079078758), (20, 1039539379), (41, 507092380), (82, 253546190), (164, 126773095), (205, 101418476), (410, 50709238), (820, 25354619)]