86680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 213840

約数和(自身を除く): 127160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 394, 440, 788, 985, 1576, 1970, 2167, 3940, 4334, 7880, 8668, 10835, 17336, 21670, 43340, 86680]

約数ペア:

[(1, 86680), (2, 43340), (4, 21670), (5, 17336), (8, 10835), (10, 8668), (11, 7880), (20, 4334), (22, 3940), (40, 2167), (44, 1970), (55, 1576), (88, 985), (110, 788), (197, 440), (220, 394)]