20434660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21739}}^1$

素因数の和:21795

約数の個数: 24

約数和(自身を含む): 43827840

約数和(自身を除く): 23393180

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21739, 43478, 86956, 108695, 217390, 434780, 1021733, 2043466, 4086932, 5108665, 10217330, 20434660]

約数ペア:

[(1, 20434660), (2, 10217330), (4, 5108665), (5, 4086932), (10, 2043466), (20, 1021733), (47, 434780), (94, 217390), (188, 108695), (235, 86956), (470, 43478), (940, 21739)]