81239988

素因数分解:

$2^2\times 3^1\times {\mathrm{631}}^1\times {\mathrm{10729}}^1$

素因数の和:11367

約数の個数: 24

約数和(自身を含む): 189878080

約数和(自身を除く): 108638092

約数列:

[1, 2, 3, 4, 6, 12, 631, 1262, 1893, 2524, 3786, 7572, 10729, 21458, 32187, 42916, 64374, 128748, 6769999, 13539998, 20309997, 27079996, 40619994, 81239988]

約数ペア:

[(1, 81239988), (2, 40619994), (3, 27079996), (4, 20309997), (6, 13539998), (12, 6769999), (631, 128748), (1262, 64374), (1893, 42916), (2524, 32187), (3786, 21458), (7572, 10729)]