17943580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8231}}^1$

素因数の和:8349

約数の個数: 24

約数和(自身を含む): 38031840

約数和(自身を除く): 20088260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8231, 16462, 32924, 41155, 82310, 164620, 897179, 1794358, 3588716, 4485895, 8971790, 17943580]

約数ペア:

[(1, 17943580), (2, 8971790), (4, 4485895), (5, 3588716), (10, 1794358), (20, 897179), (109, 164620), (218, 82310), (436, 41155), (545, 32924), (1090, 16462), (2180, 8231)]