28152860

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{8429}}^1$

素因数の和:8605

約数の個数: 24

約数和(自身を含む): 59482080

約数和(自身を除く): 31329220

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 8429, 16858, 33716, 42145, 84290, 168580, 1407643, 2815286, 5630572, 7038215, 14076430, 28152860]

約数ペア:

[(1, 28152860), (2, 14076430), (4, 7038215), (5, 5630572), (10, 2815286), (20, 1407643), (167, 168580), (334, 84290), (668, 42145), (835, 33716), (1670, 16858), (3340, 8429)]