2087156920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{516623}}^1$

素因数の和:516735

約数の個数: 32

約数和(自身を含む): 4742608320

約数和(自身を除く): 2655451400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 516623, 1033246, 2066492, 2583115, 4132984, 5166230, 10332460, 20664920, 52178923, 104357846, 208715692, 260894615, 417431384, 521789230, 1043578460, 2087156920]

約数ペア:

[(1, 2087156920), (2, 1043578460), (4, 521789230), (5, 417431384), (8, 260894615), (10, 208715692), (20, 104357846), (40, 52178923), (101, 20664920), (202, 10332460), (404, 5166230), (505, 4132984), (808, 2583115), (1010, 2066492), (2020, 1033246), (4040, 516623)]