2005515

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1087}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 3564288

約数和(自身を除く): 1558773

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1087, 1845, 3261, 5435, 9783, 16305, 44567, 48915, 133701, 222835, 401103, 668505, 2005515]

約数ペア:

[(1, 2005515), (3, 668505), (5, 401103), (9, 222835), (15, 133701), (41, 48915), (45, 44567), (123, 16305), (205, 9783), (369, 5435), (615, 3261), (1087, 1845)]