4017777980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1988999}}^1$

素因数の和:1989109

約数の個数: 24

約数和(自身を含む): 8520876000

約数和(自身を除く): 4503098020

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 1988999, 3977998, 7955996, 9944995, 19889990, 39779980, 200888899, 401777798, 803555596, 1004444495, 2008888990, 4017777980]

約数ペア:

[(1, 4017777980), (2, 2008888990), (4, 1004444495), (5, 803555596), (10, 401777798), (20, 200888899), (101, 39779980), (202, 19889990), (404, 9944995), (505, 7955996), (1010, 3977998), (2020, 1988999)]