20922740

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2383}}^1$

素因数の和:2831

約数の個数: 24

約数和(自身を含む): 44056320

約数和(自身を除く): 23133580

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 2383, 4390, 4766, 8780, 9532, 11915, 23830, 47660, 1046137, 2092274, 4184548, 5230685, 10461370, 20922740]

約数ペア:

[(1, 20922740), (2, 10461370), (4, 5230685), (5, 4184548), (10, 2092274), (20, 1046137), (439, 47660), (878, 23830), (1756, 11915), (2195, 9532), (2383, 8780), (4390, 4766)]