15643755

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 28435680

約数和(自身を除く): 12791925

約数列:

[1, 3, 5, 9, 15, 41, 45, 61, 123, 139, 183, 205, 305, 369, 417, 549, 615, 695, 915, 1251, 1845, 2085, 2501, 2745, 5699, 6255, 7503, 8479, 12505, 17097, 22509, 25437, 28495, 37515, 42395, 51291, 76311, 85485, 112545, 127185, 256455, 347639, 381555, 1042917, 1738195, 3128751, 5214585, 15643755]

約数ペア:

[(1, 15643755), (3, 5214585), (5, 3128751), (9, 1738195), (15, 1042917), (41, 381555), (45, 347639), (61, 256455), (123, 127185), (139, 112545), (183, 85485), (205, 76311), (305, 51291), (369, 42395), (417, 37515), (549, 28495), (615, 25437), (695, 22509), (915, 17097), (1251, 12505), (1845, 8479), (2085, 7503), (2501, 6255), (2745, 5699)]