169780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 384552

約数和(自身を除く): 214772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 653, 1306, 2612, 3265, 6530, 8489, 13060, 16978, 33956, 42445, 84890, 169780]

約数ペア:

[(1, 169780), (2, 84890), (4, 42445), (5, 33956), (10, 16978), (13, 13060), (20, 8489), (26, 6530), (52, 3265), (65, 2612), (130, 1306), (260, 653)]