80578828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{2857}}^1$

素因数の和:3513

約数の個数: 24

約数和(自身を含む): 154126224

約数和(自身を除く): 73547396

約数列:

[1, 2, 4, 11, 22, 44, 641, 1282, 2564, 2857, 5714, 7051, 11428, 14102, 28204, 31427, 62854, 125708, 1831337, 3662674, 7325348, 20144707, 40289414, 80578828]

約数ペア:

[(1, 80578828), (2, 40289414), (4, 20144707), (11, 7325348), (22, 3662674), (44, 1831337), (641, 125708), (1282, 62854), (2564, 31427), (2857, 28204), (5714, 14102), (7051, 11428)]