1281105

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{83}}^1$

素因数の和:115

約数の個数: 48

約数和(自身を含む): 2620800

約数和(自身を除く): 1339695

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 83, 105, 147, 245, 249, 315, 343, 415, 441, 581, 735, 747, 1029, 1245, 1715, 1743, 2205, 2905, 3087, 3735, 4067, 5145, 5229, 8715, 12201, 15435, 20335, 26145, 28469, 36603, 61005, 85407, 142345, 183015, 256221, 427035, 1281105]

約数ペア:

[(1, 1281105), (3, 427035), (5, 256221), (7, 183015), (9, 142345), (15, 85407), (21, 61005), (35, 36603), (45, 28469), (49, 26145), (63, 20335), (83, 15435), (105, 12201), (147, 8715), (245, 5229), (249, 5145), (315, 4067), (343, 3735), (415, 3087), (441, 2905), (581, 2205), (735, 1743), (747, 1715), (1029, 1245)]