280805715

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{44893}}^1$

素因数の和:45043

約数の個数: 24

約数和(自身を含む): 490242480

約数和(自身を除く): 209436765

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 6255, 44893, 134679, 224465, 404037, 673395, 2020185, 6240127, 18720381, 31200635, 56161143, 93601905, 280805715]

約数ペア:

[(1, 280805715), (3, 93601905), (5, 56161143), (9, 31200635), (15, 18720381), (45, 6240127), (139, 2020185), (417, 673395), (695, 404037), (1251, 224465), (2085, 134679), (6255, 44893)]