16205660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19763}}^1$

素因数の和:19813

約数の個数: 24

約数和(自身を含む): 34863696

約数和(自身を除く): 18658036

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 19763, 39526, 79052, 98815, 197630, 395260, 810283, 1620566, 3241132, 4051415, 8102830, 16205660]

約数ペア:

[(1, 16205660), (2, 8102830), (4, 4051415), (5, 3241132), (10, 1620566), (20, 810283), (41, 395260), (82, 197630), (164, 98815), (205, 79052), (410, 39526), (820, 19763)]