128537690

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181039}}^1$

素因数の和:181117

約数の個数: 16

約数和(自身を含む): 234627840

約数和(自身を除く): 106090150

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 181039, 362078, 905195, 1810390, 12853769, 25707538, 64268845, 128537690]

約数ペア:

[(1, 128537690), (2, 64268845), (5, 25707538), (10, 12853769), (71, 1810390), (142, 905195), (355, 362078), (710, 181039)]