157420780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{715549}}^1$

素因数の和:715569

約数の個数: 24

約数和(自身を含む): 360637200

約数和(自身を除く): 203216420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 715549, 1431098, 2862196, 3577745, 7155490, 7871039, 14310980, 15742078, 31484156, 39355195, 78710390, 157420780]

約数ペア:

[(1, 157420780), (2, 78710390), (4, 39355195), (5, 31484156), (10, 15742078), (11, 14310980), (20, 7871039), (22, 7155490), (44, 3577745), (55, 2862196), (110, 1431098), (220, 715549)]