156880780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1120577}}^1$

素因数の和:1120593

約数の個数: 24

約数和(自身を含む): 376514208

約数和(自身を除く): 219633428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1120577, 2241154, 4482308, 5602885, 7844039, 11205770, 15688078, 22411540, 31376156, 39220195, 78440390, 156880780]

約数ペア:

[(1, 156880780), (2, 78440390), (4, 39220195), (5, 31376156), (7, 22411540), (10, 15688078), (14, 11205770), (20, 7844039), (28, 5602885), (35, 4482308), (70, 2241154), (140, 1120577)]