788357780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{21911}}^1$

素因数の和:22184

約数の個数: 48

約数和(自身を含む): 1899507456

約数和(自身を除く): 1111149676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1799, 2570, 3598, 5140, 7196, 8995, 17990, 21911, 35980, 43822, 87644, 109555, 153377, 219110, 306754, 438220, 613508, 766885, 1533770, 3067540, 5631127, 11262254, 22524508, 28155635, 39417889, 56311270, 78835778, 112622540, 157671556, 197089445, 394178890, 788357780]

約数ペア:

[(1, 788357780), (2, 394178890), (4, 197089445), (5, 157671556), (7, 112622540), (10, 78835778), (14, 56311270), (20, 39417889), (28, 28155635), (35, 22524508), (70, 11262254), (140, 5631127), (257, 3067540), (514, 1533770), (1028, 766885), (1285, 613508), (1799, 438220), (2570, 306754), (3598, 219110), (5140, 153377), (7196, 109555), (8995, 87644), (17990, 43822), (21911, 35980)]