85581188

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2160

約数の個数: 48

約数和(自身を含む): 188160000

約数和(自身を除く): 102578812

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 139, 154, 278, 308, 556, 973, 1529, 1946, 1999, 3058, 3892, 3998, 6116, 7996, 10703, 13993, 21406, 21989, 27986, 42812, 43978, 55972, 87956, 153923, 277861, 307846, 555722, 615692, 1111444, 1945027, 3056471, 3890054, 6112942, 7780108, 12225884, 21395297, 42790594, 85581188]

約数ペア:

[(1, 85581188), (2, 42790594), (4, 21395297), (7, 12225884), (11, 7780108), (14, 6112942), (22, 3890054), (28, 3056471), (44, 1945027), (77, 1111444), (139, 615692), (154, 555722), (278, 307846), (308, 277861), (556, 153923), (973, 87956), (1529, 55972), (1946, 43978), (1999, 42812), (3058, 27986), (3892, 21989), (3998, 21406), (6116, 13993), (7996, 10703)]