18579880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42227}}^1$

素因数の和:42249

約数の個数: 32

約数和(自身を含む): 45606240

約数和(自身を除く): 27026360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42227, 84454, 168908, 211135, 337816, 422270, 464497, 844540, 928994, 1689080, 1857988, 2322485, 3715976, 4644970, 9289940, 18579880]

約数ペア:

[(1, 18579880), (2, 9289940), (4, 4644970), (5, 3715976), (8, 2322485), (10, 1857988), (11, 1689080), (20, 928994), (22, 844540), (40, 464497), (44, 422270), (55, 337816), (88, 211135), (110, 168908), (220, 84454), (440, 42227)]