19207880

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1109}}^1$

素因数の和:1553

約数の個数: 32

約数和(自身を含む): 43356600

約数和(自身を除く): 24148720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1109, 1732, 2165, 2218, 3464, 4330, 4436, 5545, 8660, 8872, 11090, 17320, 22180, 44360, 480197, 960394, 1920788, 2400985, 3841576, 4801970, 9603940, 19207880]

約数ペア:

[(1, 19207880), (2, 9603940), (4, 4801970), (5, 3841576), (8, 2400985), (10, 1920788), (20, 960394), (40, 480197), (433, 44360), (866, 22180), (1109, 17320), (1732, 11090), (2165, 8872), (2218, 8660), (3464, 5545), (4330, 4436)]