280481084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{20509}}^1$

素因数の和:20789

約数の個数: 24

約数和(自身を含む): 530634720

約数和(自身を除く): 250153636

約数列:

[1, 2, 4, 13, 26, 52, 263, 526, 1052, 3419, 6838, 13676, 20509, 41018, 82036, 266617, 533234, 1066468, 5393867, 10787734, 21575468, 70120271, 140240542, 280481084]

約数ペア:

[(1, 280481084), (2, 140240542), (4, 70120271), (13, 21575468), (26, 10787734), (52, 5393867), (263, 1066468), (526, 533234), (1052, 266617), (3419, 82036), (6838, 41018), (13676, 20509)]