19229720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28279}}^1$

素因数の和:28307

約数の個数: 32

約数和(自身を含む): 45813600

約数和(自身を除く): 26583880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28279, 56558, 113116, 141395, 226232, 282790, 480743, 565580, 961486, 1131160, 1922972, 2403715, 3845944, 4807430, 9614860, 19229720]

約数ペア:

[(1, 19229720), (2, 9614860), (4, 4807430), (5, 3845944), (8, 2403715), (10, 1922972), (17, 1131160), (20, 961486), (34, 565580), (40, 480743), (68, 282790), (85, 226232), (136, 141395), (170, 113116), (340, 56558), (680, 28279)]