18566680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42197}}^1$

素因数の和:42219

約数の個数: 32

約数和(自身を含む): 45573840

約数和(自身を除く): 27007160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42197, 84394, 168788, 210985, 337576, 421970, 464167, 843940, 928334, 1687880, 1856668, 2320835, 3713336, 4641670, 9283340, 18566680]

約数ペア:

[(1, 18566680), (2, 9283340), (4, 4641670), (5, 3713336), (8, 2320835), (10, 1856668), (11, 1687880), (20, 928334), (22, 843940), (40, 464167), (44, 421970), (55, 337576), (88, 210985), (110, 168788), (220, 84394), (440, 42197)]