28004680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63647}}^1$

素因数の和:63669

約数の個数: 32

約数和(自身を含む): 68739840

約数和(自身を除く): 40735160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63647, 127294, 254588, 318235, 509176, 636470, 700117, 1272940, 1400234, 2545880, 2800468, 3500585, 5600936, 7001170, 14002340, 28004680]

約数ペア:

[(1, 28004680), (2, 14002340), (4, 7001170), (5, 5600936), (8, 3500585), (10, 2800468), (11, 2545880), (20, 1400234), (22, 1272940), (40, 700117), (44, 636470), (55, 509176), (88, 318235), (110, 254588), (220, 127294), (440, 63647)]