18115540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53281}}^1$

素因数の和:53307

約数の個数: 24

約数和(自身を含む): 40281192

約数和(自身を除く): 22165652

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 53281, 106562, 213124, 266405, 532810, 905777, 1065620, 1811554, 3623108, 4528885, 9057770, 18115540]

約数ペア:

[(1, 18115540), (2, 9057770), (4, 4528885), (5, 3623108), (10, 1811554), (17, 1065620), (20, 905777), (34, 532810), (68, 266405), (85, 213124), (170, 106562), (340, 53281)]