268990180

素因数分解:

$2^2\times 5^1\times {\mathrm{13449509}}^1$

素因数の和:13449518

約数の個数: 12

約数和(自身を含む): 564879420

約数和(自身を除く): 295889240

約数列:

[1, 2, 4, 5, 10, 20, 13449509, 26899018, 53798036, 67247545, 134495090, 268990180]

約数ペア:

[(1, 268990180), (2, 134495090), (4, 67247545), (5, 53798036), (10, 26899018), (20, 13449509)]