208317680

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{11677}}^1$

素因数の和:11913

約数の個数: 40

約数和(自身を含む): 486552192

約数和(自身を除く): 278234512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 8920, 11677, 17840, 23354, 46708, 58385, 93416, 116770, 186832, 233540, 467080, 934160, 2603971, 5207942, 10415884, 13019855, 20831768, 26039710, 41663536, 52079420, 104158840, 208317680]

約数ペア:

[(1, 208317680), (2, 104158840), (4, 52079420), (5, 41663536), (8, 26039710), (10, 20831768), (16, 13019855), (20, 10415884), (40, 5207942), (80, 2603971), (223, 934160), (446, 467080), (892, 233540), (1115, 186832), (1784, 116770), (2230, 93416), (3568, 58385), (4460, 46708), (8920, 23354), (11677, 17840)]