28766660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110641}}^1$

素因数の和:110663

約数の個数: 24

約数和(自身を含む): 65057496

約数和(自身を除く): 36290836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110641, 221282, 442564, 553205, 1106410, 1438333, 2212820, 2876666, 5753332, 7191665, 14383330, 28766660]

約数ペア:

[(1, 28766660), (2, 14383330), (4, 7191665), (5, 5753332), (10, 2876666), (13, 2212820), (20, 1438333), (26, 1106410), (52, 553205), (65, 442564), (130, 221282), (260, 110641)]