20808220190

素因数分解:

$2^1\times 5^1\times {\mathrm{99661}}^1\times {\mathrm{20879}}^1$

素因数の和:120547

約数の個数: 16

約数和(自身を含む): 37456966080

約数和(自身を除く): 16648745890

約数列:

[1, 2, 5, 10, 20879, 41758, 99661, 104395, 199322, 208790, 498305, 996610, 2080822019, 4161644038, 10404110095, 20808220190]

約数ペア:

[(1, 20808220190), (2, 10404110095), (5, 4161644038), (10, 2080822019), (20879, 996610), (41758, 498305), (99661, 208790), (104395, 199322)]