280388547

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{47419}}^1$

素因数の和:47504

約数の個数: 20

約数和(自身を含む): 424598680

約数和(自身を除く): 144210133

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 5913, 47419, 142257, 426771, 1280313, 3461587, 3840939, 10384761, 31154283, 93462849, 280388547]

約数ペア:

[(1, 280388547), (3, 93462849), (9, 31154283), (27, 10384761), (73, 3840939), (81, 3461587), (219, 1280313), (657, 426771), (1971, 142257), (5913, 47419)]