20779992

素因数分解:

$2^3\times 3^2\times {\mathrm{257}}^1\times {\mathrm{1123}}^1$

素因数の和:1392

約数の個数: 48

約数和(自身を含む): 56548440

約数和(自身を除く): 35768448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 257, 514, 771, 1028, 1123, 1542, 2056, 2246, 2313, 3084, 3369, 4492, 4626, 6168, 6738, 8984, 9252, 10107, 13476, 18504, 20214, 26952, 40428, 80856, 288611, 577222, 865833, 1154444, 1731666, 2308888, 2597499, 3463332, 5194998, 6926664, 10389996, 20779992]

約数ペア:

[(1, 20779992), (2, 10389996), (3, 6926664), (4, 5194998), (6, 3463332), (8, 2597499), (9, 2308888), (12, 1731666), (18, 1154444), (24, 865833), (36, 577222), (72, 288611), (257, 80856), (514, 40428), (771, 26952), (1028, 20214), (1123, 18504), (1542, 13476), (2056, 10107), (2246, 9252), (2313, 8984), (3084, 6738), (3369, 6168), (4492, 4626)]