20662760

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1193}}^1$

素因数の和:1637

約数の個数: 32

約数和(自身を含む): 46637640

約数和(自身を除く): 25974880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1193, 1732, 2165, 2386, 3464, 4330, 4772, 5965, 8660, 9544, 11930, 17320, 23860, 47720, 516569, 1033138, 2066276, 2582845, 4132552, 5165690, 10331380, 20662760]

約数ペア:

[(1, 20662760), (2, 10331380), (4, 5165690), (5, 4132552), (8, 2582845), (10, 2066276), (20, 1033138), (40, 516569), (433, 47720), (866, 23860), (1193, 17320), (1732, 11930), (2165, 9544), (2386, 8660), (3464, 5965), (4330, 4772)]