28821260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8527}}^1$

素因数の和:8562

約数の個数: 36

約数和(自身を含む): 65546208

約数和(自身を除く): 36724948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8527, 17054, 34108, 42635, 85270, 110851, 170540, 221702, 443404, 554255, 1108510, 1441063, 2217020, 2882126, 5764252, 7205315, 14410630, 28821260]

約数ペア:

[(1, 28821260), (2, 14410630), (4, 7205315), (5, 5764252), (10, 2882126), (13, 2217020), (20, 1441063), (26, 1108510), (52, 554255), (65, 443404), (130, 221702), (169, 170540), (260, 110851), (338, 85270), (676, 42635), (845, 34108), (1690, 17054), (3380, 8527)]