20854035

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 16885485

約数列:

[1, 3, 5, 9, 15, 41, 45, 89, 123, 127, 205, 267, 369, 381, 445, 615, 635, 801, 1143, 1335, 1845, 1905, 3649, 4005, 5207, 5715, 10947, 11303, 15621, 18245, 26035, 32841, 33909, 46863, 54735, 56515, 78105, 101727, 164205, 169545, 234315, 463423, 508635, 1390269, 2317115, 4170807, 6951345, 20854035]

約数ペア:

[(1, 20854035), (3, 6951345), (5, 4170807), (9, 2317115), (15, 1390269), (41, 508635), (45, 463423), (89, 234315), (123, 169545), (127, 164205), (205, 101727), (267, 78105), (369, 56515), (381, 54735), (445, 46863), (615, 33909), (635, 32841), (801, 26035), (1143, 18245), (1335, 15621), (1845, 11303), (1905, 10947), (3649, 5715), (4005, 5207)]