8021680

素因数分解:

$2^4\times 5^1\times {\mathrm{100271}}^1$

素因数の和:100284

約数の個数: 20

約数和(自身を含む): 18650592

約数和(自身を除く): 10628912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 100271, 200542, 401084, 501355, 802168, 1002710, 1604336, 2005420, 4010840, 8021680]

約数ペア:

[(1, 8021680), (2, 4010840), (4, 2005420), (5, 1604336), (8, 1002710), (10, 802168), (16, 501355), (20, 401084), (40, 200542), (80, 100271)]