330640

素因数分解:

$2^4\times 5^1\times {\mathrm{4133}}^1$

素因数の和:4146

約数の個数: 20

約数和(自身を含む): 768924

約数和(自身を除く): 438284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4133, 8266, 16532, 20665, 33064, 41330, 66128, 82660, 165320, 330640]

約数ペア:

[(1, 330640), (2, 165320), (4, 82660), (5, 66128), (8, 41330), (10, 33064), (16, 20665), (20, 16532), (40, 8266), (80, 4133)]