81887868

素因数分解:

$2^2\times 3^3\times {\mathrm{421}}^1\times {\mathrm{1801}}^1$

素因数の和:2235

約数の個数: 48

約数和(自身を含む): 212924320

約数和(自身を除く): 131036452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 421, 842, 1263, 1684, 1801, 2526, 3602, 3789, 5052, 5403, 7204, 7578, 10806, 11367, 15156, 16209, 21612, 22734, 32418, 45468, 48627, 64836, 97254, 194508, 758221, 1516442, 2274663, 3032884, 4549326, 6823989, 9098652, 13647978, 20471967, 27295956, 40943934, 81887868]

約数ペア:

[(1, 81887868), (2, 40943934), (3, 27295956), (4, 20471967), (6, 13647978), (9, 9098652), (12, 6823989), (18, 4549326), (27, 3032884), (36, 2274663), (54, 1516442), (108, 758221), (421, 194508), (842, 97254), (1263, 64836), (1684, 48627), (1801, 45468), (2526, 32418), (3602, 22734), (3789, 21612), (5052, 16209), (5403, 15156), (7204, 11367), (7578, 10806)]