8666990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21139}}^1$

素因数の和:21187

約数の個数: 16

約数和(自身を含む): 15981840

約数和(自身を除く): 7314850

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 21139, 42278, 105695, 211390, 866699, 1733398, 4333495, 8666990]

約数ペア:

[(1, 8666990), (2, 4333495), (5, 1733398), (10, 866699), (41, 211390), (82, 105695), (205, 42278), (410, 21139)]