28261485

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{1831}}^1$

素因数の和:1863

約数の個数: 48

約数和(自身を含む): 57158400

約数和(自身を除く): 28896915

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 343, 441, 735, 1029, 1715, 1831, 2205, 3087, 5145, 5493, 9155, 12817, 15435, 16479, 27465, 38451, 64085, 82395, 89719, 115353, 192255, 269157, 448595, 576765, 628033, 807471, 1345785, 1884099, 3140165, 4037355, 5652297, 9420495, 28261485]

約数ペア:

[(1, 28261485), (3, 9420495), (5, 5652297), (7, 4037355), (9, 3140165), (15, 1884099), (21, 1345785), (35, 807471), (45, 628033), (49, 576765), (63, 448595), (105, 269157), (147, 192255), (245, 115353), (315, 89719), (343, 82395), (441, 64085), (735, 38451), (1029, 27465), (1715, 16479), (1831, 15435), (2205, 12817), (3087, 9155), (5145, 5493)]