28161485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 10545715

約数列:

[1, 5, 11, 31, 55, 83, 155, 199, 341, 415, 913, 995, 1705, 2189, 2573, 4565, 6169, 10945, 12865, 16517, 28303, 30845, 67859, 82585, 141515, 181687, 339295, 512027, 908435, 2560135, 5632297, 28161485]

約数ペア:

[(1, 28161485), (5, 5632297), (11, 2560135), (31, 908435), (55, 512027), (83, 339295), (155, 181687), (199, 141515), (341, 82585), (415, 67859), (913, 30845), (995, 28303), (1705, 16517), (2189, 12865), (2573, 10945), (4565, 6169)]