289180780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2065577}}^1$

素因数の和:2065593

約数の個数: 24

約数和(自身を含む): 694034208

約数和(自身を除く): 404853428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2065577, 4131154, 8262308, 10327885, 14459039, 20655770, 28918078, 41311540, 57836156, 72295195, 144590390, 289180780]

約数ペア:

[(1, 289180780), (2, 144590390), (4, 72295195), (5, 57836156), (7, 41311540), (10, 28918078), (14, 20655770), (20, 14459039), (28, 10327885), (35, 8262308), (70, 4131154), (140, 2065577)]