21896480

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1279}}^1$

素因数の和:1401

約数の個数: 48

約数和(自身を含む): 52254720

約数和(自身を除く): 30358240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 428, 535, 856, 1070, 1279, 1712, 2140, 2558, 3424, 4280, 5116, 6395, 8560, 10232, 12790, 17120, 20464, 25580, 40928, 51160, 102320, 136853, 204640, 273706, 547412, 684265, 1094824, 1368530, 2189648, 2737060, 4379296, 5474120, 10948240, 21896480]

約数ペア:

[(1, 21896480), (2, 10948240), (4, 5474120), (5, 4379296), (8, 2737060), (10, 2189648), (16, 1368530), (20, 1094824), (32, 684265), (40, 547412), (80, 273706), (107, 204640), (160, 136853), (214, 102320), (428, 51160), (535, 40928), (856, 25580), (1070, 20464), (1279, 17120), (1712, 12790), (2140, 10232), (2558, 8560), (3424, 6395), (4280, 5116)]