28878885

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{1871}}^1$

素因数の和:1903

約数の個数: 48

約数和(自身を含む): 58406400

約数和(自身を除く): 29527515

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 343, 441, 735, 1029, 1715, 1871, 2205, 3087, 5145, 5613, 9355, 13097, 15435, 16839, 28065, 39291, 65485, 84195, 91679, 117873, 196455, 275037, 458395, 589365, 641753, 825111, 1375185, 1925259, 3208765, 4125555, 5775777, 9626295, 28878885]

約数ペア:

[(1, 28878885), (3, 9626295), (5, 5775777), (7, 4125555), (9, 3208765), (15, 1925259), (21, 1375185), (35, 825111), (45, 641753), (49, 589365), (63, 458395), (105, 275037), (147, 196455), (245, 117873), (315, 91679), (343, 84195), (441, 65485), (735, 39291), (1029, 28065), (1715, 16839), (1871, 15435), (2205, 13097), (3087, 9355), (5145, 5613)]