18032810

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4409}}^1$

素因数の和:4825

約数の個数: 16

約数和(自身を含む): 32545800

約数和(自身を除く): 14512990

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 4409, 8818, 22045, 44090, 1803281, 3606562, 9016405, 18032810]

約数ペア:

[(1, 18032810), (2, 9016405), (5, 3606562), (10, 1803281), (409, 44090), (818, 22045), (2045, 8818), (4090, 4409)]