18984340

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2689}}^1$

素因数の和:3051

約数の個数: 24

約数和(自身を含む): 39994920

約数和(自身を除く): 21010580

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2689, 3530, 5378, 7060, 10756, 13445, 26890, 53780, 949217, 1898434, 3796868, 4746085, 9492170, 18984340]

約数ペア:

[(1, 18984340), (2, 9492170), (4, 4746085), (5, 3796868), (10, 1898434), (20, 949217), (353, 53780), (706, 26890), (1412, 13445), (1765, 10756), (2689, 7060), (3530, 5378)]