20560748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5569}}^1$

素因数の和:5657

約数の個数: 24

約数和(自身を含む): 39301920

約数和(自身を除く): 18741172

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5569, 11138, 22276, 72397, 144794, 289588, 395399, 790798, 1581596, 5140187, 10280374, 20560748]

約数ペア:

[(1, 20560748), (2, 10280374), (4, 5140187), (13, 1581596), (26, 790798), (52, 395399), (71, 289588), (142, 144794), (284, 72397), (923, 22276), (1846, 11138), (3692, 5569)]