28968280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65837}}^1$

素因数の和:65859

約数の個数: 32

約数和(自身を含む): 71105040

約数和(自身を除く): 42136760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65837, 131674, 263348, 329185, 526696, 658370, 724207, 1316740, 1448414, 2633480, 2896828, 3621035, 5793656, 7242070, 14484140, 28968280]

約数ペア:

[(1, 28968280), (2, 14484140), (4, 7242070), (5, 5793656), (8, 3621035), (10, 2896828), (11, 2633480), (20, 1448414), (22, 1316740), (40, 724207), (44, 658370), (55, 526696), (88, 329185), (110, 263348), (220, 131674), (440, 65837)]