18265480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26861}}^1$

素因数の和:26889

約数の個数: 32

約数和(自身を含む): 43516440

約数和(自身を除く): 25250960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 26861, 53722, 107444, 134305, 214888, 268610, 456637, 537220, 913274, 1074440, 1826548, 2283185, 3653096, 4566370, 9132740, 18265480]

約数ペア:

[(1, 18265480), (2, 9132740), (4, 4566370), (5, 3653096), (8, 2283185), (10, 1826548), (17, 1074440), (20, 913274), (34, 537220), (40, 456637), (68, 268610), (85, 214888), (136, 134305), (170, 107444), (340, 53722), (680, 26861)]