20880170

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{15241}}^1$

素因数の和:15385

約数の個数: 16

約数和(自身を含む): 37861128

約数和(自身を除く): 16980958

約数列:

[1, 2, 5, 10, 137, 274, 685, 1370, 15241, 30482, 76205, 152410, 2088017, 4176034, 10440085, 20880170]

約数ペア:

[(1, 20880170), (2, 10440085), (5, 4176034), (10, 2088017), (137, 152410), (274, 76205), (685, 30482), (1370, 15241)]