298660

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 637560

約数和(自身を除く): 338900

約数列:

[1, 2, 4, 5, 10, 20, 109, 137, 218, 274, 436, 545, 548, 685, 1090, 1370, 2180, 2740, 14933, 29866, 59732, 74665, 149330, 298660]

約数ペア:

[(1, 298660), (2, 149330), (4, 74665), (5, 59732), (10, 29866), (20, 14933), (109, 2740), (137, 2180), (218, 1370), (274, 1090), (436, 685), (545, 548)]