28109770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{16633}}^1$

素因数の和:16666

約数の個数: 24

約数和(自身を含む): 54792396

約数和(自身を除く): 26682626

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 16633, 33266, 83165, 166330, 216229, 432458, 1081145, 2162290, 2810977, 5621954, 14054885, 28109770]

約数ペア:

[(1, 28109770), (2, 14054885), (5, 5621954), (10, 2810977), (13, 2162290), (26, 1081145), (65, 432458), (130, 216229), (169, 166330), (338, 83165), (845, 33266), (1690, 16633)]