2005405940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2445617}}^1$

素因数の和:2445667

約数の個数: 24

約数和(自身を含む): 4314070152

約数和(自身を除く): 2308664212

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2445617, 4891234, 9782468, 12228085, 24456170, 48912340, 100270297, 200540594, 401081188, 501351485, 1002702970, 2005405940]

約数ペア:

[(1, 2005405940), (2, 1002702970), (4, 501351485), (5, 401081188), (10, 200540594), (20, 100270297), (41, 48912340), (82, 24456170), (164, 12228085), (205, 9782468), (410, 4891234), (820, 2445617)]