20715448

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1433}}^1$

素因数の和:1591

約数の個数: 32

約数和(自身を含む): 42159600

約数和(自身を除く): 21444152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1433, 1807, 2866, 3614, 5732, 7228, 11464, 14456, 18629, 37258, 74516, 149032, 199187, 398374, 796748, 1593496, 2589431, 5178862, 10357724, 20715448]

約数ペア:

[(1, 20715448), (2, 10357724), (4, 5178862), (8, 2589431), (13, 1593496), (26, 796748), (52, 398374), (104, 199187), (139, 149032), (278, 74516), (556, 37258), (1112, 18629), (1433, 14456), (1807, 11464), (2866, 7228), (3614, 5732)]