20157628690

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22649021}}^1$

素因数の和:22649117

約数の個数: 16

約数和(自身を含む): 36691415640

約数和(自身を除く): 16533786950

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22649021, 45298042, 113245105, 226490210, 2015762869, 4031525738, 10078814345, 20157628690]

約数ペア:

[(1, 20157628690), (2, 10078814345), (5, 4031525738), (10, 2015762869), (89, 226490210), (178, 113245105), (445, 45298042), (890, 22649021)]