81677772

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{863}}^1$

素因数の和:1123

約数の個数: 72

約数和(自身を含む): 226437120

約数和(自身を除く): 144759348

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 239, 396, 478, 717, 863, 956, 1434, 1726, 2151, 2589, 2629, 2868, 3452, 4302, 5178, 5258, 7767, 7887, 8604, 9493, 10356, 10516, 15534, 15774, 18986, 23661, 28479, 31068, 31548, 37972, 47322, 56958, 85437, 94644, 113916, 170874, 206257, 341748, 412514, 618771, 825028, 1237542, 1856313, 2268827, 2475084, 3712626, 4537654, 6806481, 7425252, 9075308, 13612962, 20419443, 27225924, 40838886, 81677772]

約数ペア:

[(1, 81677772), (2, 40838886), (3, 27225924), (4, 20419443), (6, 13612962), (9, 9075308), (11, 7425252), (12, 6806481), (18, 4537654), (22, 3712626), (33, 2475084), (36, 2268827), (44, 1856313), (66, 1237542), (99, 825028), (132, 618771), (198, 412514), (239, 341748), (396, 206257), (478, 170874), (717, 113916), (863, 94644), (956, 85437), (1434, 56958), (1726, 47322), (2151, 37972), (2589, 31548), (2629, 31068), (2868, 28479), (3452, 23661), (4302, 18986), (5178, 15774), (5258, 15534), (7767, 10516), (7887, 10356), (8604, 9493)]