20305660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24763}}^1$

素因数の和:24813

約数の個数: 24

約数和(自身を含む): 43683696

約数和(自身を除く): 23378036

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24763, 49526, 99052, 123815, 247630, 495260, 1015283, 2030566, 4061132, 5076415, 10152830, 20305660]

約数ペア:

[(1, 20305660), (2, 10152830), (4, 5076415), (5, 4061132), (10, 2030566), (20, 1015283), (41, 495260), (82, 247630), (164, 123815), (205, 99052), (410, 49526), (820, 24763)]