200720816

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{545437}}^1$

素因数の和:545468

約数の個数: 20

約数和(自身を含む): 405805872

約数和(自身を除く): 205085056

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 545437, 1090874, 2181748, 4363496, 8726992, 12545051, 25090102, 50180204, 100360408, 200720816]

約数ペア:

[(1, 200720816), (2, 100360408), (4, 50180204), (8, 25090102), (16, 12545051), (23, 8726992), (46, 4363496), (92, 2181748), (184, 1090874), (368, 545437)]