20760980

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7577}}^1$

素因数の和:7723

約数の個数: 24

約数和(自身を含む): 43922088

約数和(自身を除く): 23161108

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7577, 15154, 30308, 37885, 75770, 151540, 1038049, 2076098, 4152196, 5190245, 10380490, 20760980]

約数ペア:

[(1, 20760980), (2, 10380490), (4, 5190245), (5, 4152196), (10, 2076098), (20, 1038049), (137, 151540), (274, 75770), (548, 37885), (685, 30308), (1370, 15154), (2740, 7577)]