19691380

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8713}}^1$

素因数の和:8835

約数の個数: 24

約数和(自身を含む): 41722632

約数和(自身を除く): 22031252

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8713, 17426, 34852, 43565, 87130, 174260, 984569, 1969138, 3938276, 4922845, 9845690, 19691380]

約数ペア:

[(1, 19691380), (2, 9845690), (4, 4922845), (5, 3938276), (10, 1969138), (20, 984569), (113, 174260), (226, 87130), (452, 43565), (565, 34852), (1130, 17426), (2260, 8713)]