18720740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55061}}^1$

素因数の和:55087

約数の個数: 24

約数和(自身を含む): 41626872

約数和(自身を除く): 22906132

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55061, 110122, 220244, 275305, 550610, 936037, 1101220, 1872074, 3744148, 4680185, 9360370, 18720740]

約数ペア:

[(1, 18720740), (2, 9360370), (4, 4680185), (5, 3744148), (10, 1872074), (17, 1101220), (20, 936037), (34, 550610), (68, 275305), (85, 220244), (170, 110122), (340, 55061)]