20508970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120641}}^1$

素因数の和:120665

約数の個数: 16

約数和(自身を含む): 39088008

約数和(自身を除く): 18579038

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 120641, 241282, 603205, 1206410, 2050897, 4101794, 10254485, 20508970]

約数ペア:

[(1, 20508970), (2, 10254485), (5, 4101794), (10, 2050897), (17, 1206410), (34, 603205), (85, 241282), (170, 120641)]