18720460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85093}}^1$

素因数の和:85113

約数の個数: 24

約数和(自身を含む): 42887376

約数和(自身を除く): 24166916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85093, 170186, 340372, 425465, 850930, 936023, 1701860, 1872046, 3744092, 4680115, 9360230, 18720460]

約数ペア:

[(1, 18720460), (2, 9360230), (4, 4680115), (5, 3744092), (10, 1872046), (11, 1701860), (20, 936023), (22, 850930), (44, 425465), (55, 340372), (110, 170186), (220, 85093)]