28215790

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{68819}}^1$

素因数の和:68867

約数の個数: 16

約数和(自身を含む): 52027920

約数和(自身を除く): 23812130

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 68819, 137638, 344095, 688190, 2821579, 5643158, 14107895, 28215790]

約数ペア:

[(1, 28215790), (2, 14107895), (5, 5643158), (10, 2821579), (41, 688190), (82, 344095), (205, 137638), (410, 68819)]