136780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{977}}^1$

素因数の和:993

約数の個数: 24

約数和(自身を含む): 328608

約数和(自身を除く): 191828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 977, 1954, 3908, 4885, 6839, 9770, 13678, 19540, 27356, 34195, 68390, 136780]

約数ペア:

[(1, 136780), (2, 68390), (4, 34195), (5, 27356), (7, 19540), (10, 13678), (14, 9770), (20, 6839), (28, 4885), (35, 3908), (70, 1954), (140, 977)]