18810340

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20011}}^1$

素因数の和:20067

約数の個数: 24

約数和(自身を含む): 40344192

約数和(自身を除く): 21533852

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 20011, 40022, 80044, 100055, 200110, 400220, 940517, 1881034, 3762068, 4702585, 9405170, 18810340]

約数ペア:

[(1, 18810340), (2, 9405170), (4, 4702585), (5, 3762068), (10, 1881034), (20, 940517), (47, 400220), (94, 200110), (188, 100055), (235, 80044), (470, 40022), (940, 20011)]