257272605

素因数分解:

$3^5\times 5^1\times {\mathrm{211747}}^1$

素因数の和:211767

約数の個数: 24

約数和(自身を含む): 462457632

約数和(自身を除く): 205185027

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 211747, 635241, 1058735, 1905723, 3176205, 5717169, 9528615, 17151507, 28585845, 51454521, 85757535, 257272605]

約数ペア:

[(1, 257272605), (3, 85757535), (5, 51454521), (9, 28585845), (15, 17151507), (27, 9528615), (45, 5717169), (81, 3176205), (135, 1905723), (243, 1058735), (405, 635241), (1215, 211747)]