2780415

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 5425056

約数和(自身を除く): 2644641

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 123, 137, 165, 205, 369, 411, 451, 495, 615, 685, 1233, 1353, 1507, 1845, 2055, 2255, 4059, 4521, 5617, 6165, 6765, 7535, 13563, 16851, 20295, 22605, 28085, 50553, 61787, 67815, 84255, 185361, 252765, 308935, 556083, 926805, 2780415]

約数ペア:

[(1, 2780415), (3, 926805), (5, 556083), (9, 308935), (11, 252765), (15, 185361), (33, 84255), (41, 67815), (45, 61787), (55, 50553), (99, 28085), (123, 22605), (137, 20295), (165, 16851), (205, 13563), (369, 7535), (411, 6765), (451, 6165), (495, 5617), (615, 4521), (685, 4059), (1233, 2255), (1353, 2055), (1507, 1845)]