205487920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233509}}^1$

素因数の和:233533

約数の個数: 40

約数和(自身を含む): 521194320

約数和(自身を除く): 315706400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 233509, 467018, 934036, 1167545, 1868072, 2335090, 2568599, 3736144, 4670180, 5137198, 9340360, 10274396, 12842995, 18680720, 20548792, 25685990, 41097584, 51371980, 102743960, 205487920]

約数ペア:

[(1, 205487920), (2, 102743960), (4, 51371980), (5, 41097584), (8, 25685990), (10, 20548792), (11, 18680720), (16, 12842995), (20, 10274396), (22, 9340360), (40, 5137198), (44, 4670180), (55, 3736144), (80, 2568599), (88, 2335090), (110, 1868072), (176, 1167545), (220, 934036), (440, 467018), (880, 233509)]