26640340

素因数分解:

$2^2\times 5^1\times {\mathrm{1332017}}^1$

素因数の和:1332026

約数の個数: 12

約数和(自身を含む): 55944756

約数和(自身を除く): 29304416

約数列:

[1, 2, 4, 5, 10, 20, 1332017, 2664034, 5328068, 6660085, 13320170, 26640340]

約数ペア:

[(1, 26640340), (2, 13320170), (4, 6660085), (5, 5328068), (10, 2664034), (20, 1332017)]