28750515

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{359}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 48729600

約数和(自身を除く): 19979085

約数列:

[1, 3, 5, 15, 19, 57, 95, 281, 285, 359, 843, 1077, 1405, 1795, 4215, 5339, 5385, 6821, 16017, 20463, 26695, 34105, 80085, 100879, 102315, 302637, 504395, 1513185, 1916701, 5750103, 9583505, 28750515]

約数ペア:

[(1, 28750515), (3, 9583505), (5, 5750103), (15, 1916701), (19, 1513185), (57, 504395), (95, 302637), (281, 102315), (285, 100879), (359, 80085), (843, 34105), (1077, 26695), (1405, 20463), (1795, 16017), (4215, 6821), (5339, 5385)]