28090660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108041}}^1$

素因数の和:108063

約数の個数: 24

約数和(自身を含む): 63528696

約数和(自身を除く): 35438036

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108041, 216082, 432164, 540205, 1080410, 1404533, 2160820, 2809066, 5618132, 7022665, 14045330, 28090660]

約数ペア:

[(1, 28090660), (2, 14045330), (4, 7022665), (5, 5618132), (10, 2809066), (13, 2160820), (20, 1404533), (26, 1080410), (52, 540205), (65, 432164), (130, 216082), (260, 108041)]