20880184

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{200771}}^1$

素因数の和:200790

約数の個数: 16

約数和(自身を含む): 42162120

約数和(自身を除く): 21281936

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 200771, 401542, 803084, 1606168, 2610023, 5220046, 10440092, 20880184]

約数ペア:

[(1, 20880184), (2, 10440092), (4, 5220046), (8, 2610023), (13, 1606168), (26, 803084), (52, 401542), (104, 200771)]