2016021680

素因数分解:

$2^4\times 5^1\times {\mathrm{25200271}}^1$

素因数の和:25200284

約数の個数: 20

約数和(自身を含む): 4687250592

約数和(自身を除く): 2671228912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25200271, 50400542, 100801084, 126001355, 201602168, 252002710, 403204336, 504005420, 1008010840, 2016021680]

約数ペア:

[(1, 2016021680), (2, 1008010840), (4, 504005420), (5, 403204336), (8, 252002710), (10, 201602168), (16, 126001355), (20, 100801084), (40, 50400542), (80, 25200271)]