8509220

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1061}}^1$

素因数の和:1471

約数の個数: 24

約数和(自身を含む): 17930808

約数和(自身を除く): 9421588

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1061, 1604, 2005, 2122, 4010, 4244, 5305, 8020, 10610, 21220, 425461, 850922, 1701844, 2127305, 4254610, 8509220]

約数ペア:

[(1, 8509220), (2, 4254610), (4, 2127305), (5, 1701844), (10, 850922), (20, 425461), (401, 21220), (802, 10610), (1061, 8020), (1604, 5305), (2005, 4244), (2122, 4010)]