208518280

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{10883}}^1$

素因数の和:11373

約数の個数: 32

約数和(自身を含む): 470188800

約数和(自身を除く): 261670520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 1916, 2395, 3832, 4790, 9580, 10883, 19160, 21766, 43532, 54415, 87064, 108830, 217660, 435320, 5212957, 10425914, 20851828, 26064785, 41703656, 52129570, 104259140, 208518280]

約数ペア:

[(1, 208518280), (2, 104259140), (4, 52129570), (5, 41703656), (8, 26064785), (10, 20851828), (20, 10425914), (40, 5212957), (479, 435320), (958, 217660), (1916, 108830), (2395, 87064), (3832, 54415), (4790, 43532), (9580, 21766), (10883, 19160)]