180391220

素因数分解:

$2^2\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{8501}}^1$

素因数の和:9571

約数の個数: 24

約数和(自身を含む): 379223208

約数和(自身を除く): 198831988

約数列:

[1, 2, 4, 5, 10, 20, 1061, 2122, 4244, 5305, 8501, 10610, 17002, 21220, 34004, 42505, 85010, 170020, 9019561, 18039122, 36078244, 45097805, 90195610, 180391220]

約数ペア:

[(1, 180391220), (2, 90195610), (4, 45097805), (5, 36078244), (10, 18039122), (20, 9019561), (1061, 170020), (2122, 85010), (4244, 42505), (5305, 34004), (8501, 21220), (10610, 17002)]