20280858

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{260011}}^1$

素因数の和:260029

約数の個数: 16

約数和(自身を含む): 43682016

約数和(自身を除く): 23401158

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 260011, 520022, 780033, 1560066, 3380143, 6760286, 10140429, 20280858]

約数ペア:

[(1, 20280858), (2, 10140429), (3, 6760286), (6, 3380143), (13, 1560066), (26, 780033), (39, 520022), (78, 260011)]