56784220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{28111}}^1$

素因数の和:28221

約数の個数: 24

約数和(自身を含む): 120431808

約数和(自身を除く): 63647588

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 28111, 56222, 112444, 140555, 281110, 562220, 2839211, 5678422, 11356844, 14196055, 28392110, 56784220]

約数ペア:

[(1, 56784220), (2, 28392110), (4, 14196055), (5, 11356844), (10, 5678422), (20, 2839211), (101, 562220), (202, 281110), (404, 140555), (505, 112444), (1010, 56222), (2020, 28111)]