8006540

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1279}}^1$

素因数の和:1601

約数の個数: 24

約数和(自身を含む): 16880640

約数和(自身を除く): 8874100

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1279, 1565, 2558, 3130, 5116, 6260, 6395, 12790, 25580, 400327, 800654, 1601308, 2001635, 4003270, 8006540]

約数ペア:

[(1, 8006540), (2, 4003270), (4, 2001635), (5, 1601308), (10, 800654), (20, 400327), (313, 25580), (626, 12790), (1252, 6395), (1279, 6260), (1565, 5116), (2558, 3130)]