210008020

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{47087}}^1$

素因数の和:47319

約数の個数: 24

約数和(自身を含む): 443003904

約数和(自身を除く): 232995884

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 47087, 94174, 188348, 235435, 470870, 941740, 10500401, 21000802, 42001604, 52502005, 105004010, 210008020]

約数ペア:

[(1, 210008020), (2, 105004010), (4, 52502005), (5, 42001604), (10, 21000802), (20, 10500401), (223, 941740), (446, 470870), (892, 235435), (1115, 188348), (2230, 94174), (4460, 47087)]