20970640

素因数分解:

$2^4\times 5^1\times {\mathrm{262133}}^1$

素因数の和:262146

約数の個数: 20

約数和(自身を含む): 48756924

約数和(自身を除く): 27786284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262133, 524266, 1048532, 1310665, 2097064, 2621330, 4194128, 5242660, 10485320, 20970640]

約数ペア:

[(1, 20970640), (2, 10485320), (4, 5242660), (5, 4194128), (8, 2621330), (10, 2097064), (16, 1310665), (20, 1048532), (40, 524266), (80, 262133)]