28026680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63697}}^1$

素因数の和:63719

約数の個数: 32

約数和(自身を含む): 68793840

約数和(自身を除く): 40767160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63697, 127394, 254788, 318485, 509576, 636970, 700667, 1273940, 1401334, 2547880, 2802668, 3503335, 5605336, 7006670, 14013340, 28026680]

約数ペア:

[(1, 28026680), (2, 14013340), (4, 7006670), (5, 5605336), (8, 3503335), (10, 2802668), (11, 2547880), (20, 1401334), (22, 1273940), (40, 700667), (44, 636970), (55, 509576), (88, 318485), (110, 254788), (220, 127394), (440, 63697)]