12968020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49877}}^1$

素因数の和:49899

約数の個数: 24

約数和(自身を含む): 29328264

約数和(自身を除く): 16360244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49877, 99754, 199508, 249385, 498770, 648401, 997540, 1296802, 2593604, 3242005, 6484010, 12968020]

約数ペア:

[(1, 12968020), (2, 6484010), (4, 3242005), (5, 2593604), (10, 1296802), (13, 997540), (20, 648401), (26, 498770), (52, 249385), (65, 199508), (130, 99754), (260, 49877)]