12842020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15661}}^1$

素因数の和:15711

約数の個数: 24

約数和(自身を含む): 27627768

約数和(自身を除く): 14785748

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15661, 31322, 62644, 78305, 156610, 313220, 642101, 1284202, 2568404, 3210505, 6421010, 12842020]

約数ペア:

[(1, 12842020), (2, 6421010), (4, 3210505), (5, 2568404), (10, 1284202), (20, 642101), (41, 313220), (82, 156610), (164, 78305), (205, 62644), (410, 31322), (820, 15661)]