28677340

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21401}}^1$

素因数の和:21477

約数の個数: 24

約数和(自身を含む): 61124112

約数和(自身を除く): 32446772

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 21401, 42802, 85604, 107005, 214010, 428020, 1433867, 2867734, 5735468, 7169335, 14338670, 28677340]

約数ペア:

[(1, 28677340), (2, 14338670), (4, 7169335), (5, 5735468), (10, 2867734), (20, 1433867), (67, 428020), (134, 214010), (268, 107005), (335, 85604), (670, 42802), (1340, 21401)]