19168580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13499}}^1$

素因数の和:13579

約数の個数: 24

約数和(自身を含む): 40824000

約数和(自身を除く): 21655420

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13499, 26998, 53996, 67495, 134990, 269980, 958429, 1916858, 3833716, 4792145, 9584290, 19168580]

約数ペア:

[(1, 19168580), (2, 9584290), (4, 4792145), (5, 3833716), (10, 1916858), (20, 958429), (71, 269980), (142, 134990), (284, 67495), (355, 53996), (710, 26998), (1420, 13499)]