28687520

素因数分解:

$2^5\times 5^1\times {\mathrm{193}}^1\times {\mathrm{929}}^1$

素因数の和:1137

約数の個数: 48

約数和(自身を含む): 68198760

約数和(自身を除く): 39511240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 193, 386, 772, 929, 965, 1544, 1858, 1930, 3088, 3716, 3860, 4645, 6176, 7432, 7720, 9290, 14864, 15440, 18580, 29728, 30880, 37160, 74320, 148640, 179297, 358594, 717188, 896485, 1434376, 1792970, 2868752, 3585940, 5737504, 7171880, 14343760, 28687520]

約数ペア:

[(1, 28687520), (2, 14343760), (4, 7171880), (5, 5737504), (8, 3585940), (10, 2868752), (16, 1792970), (20, 1434376), (32, 896485), (40, 717188), (80, 358594), (160, 179297), (193, 148640), (386, 74320), (772, 37160), (929, 30880), (965, 29728), (1544, 18580), (1858, 15440), (1930, 14864), (3088, 9290), (3716, 7720), (3860, 7432), (4645, 6176)]