28334680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:1000

約数の個数: 64

約数和(自身を含む): 70606080

約数和(自身を除く): 42271400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 907, 1420, 1562, 1814, 2840, 3124, 3628, 3905, 4535, 6248, 7256, 7810, 9070, 9977, 15620, 18140, 19954, 31240, 36280, 39908, 49885, 64397, 79816, 99770, 128794, 199540, 257588, 321985, 399080, 515176, 643970, 708367, 1287940, 1416734, 2575880, 2833468, 3541835, 5666936, 7083670, 14167340, 28334680]

約数ペア:

[(1, 28334680), (2, 14167340), (4, 7083670), (5, 5666936), (8, 3541835), (10, 2833468), (11, 2575880), (20, 1416734), (22, 1287940), (40, 708367), (44, 643970), (55, 515176), (71, 399080), (88, 321985), (110, 257588), (142, 199540), (220, 128794), (284, 99770), (355, 79816), (440, 64397), (568, 49885), (710, 39908), (781, 36280), (907, 31240), (1420, 19954), (1562, 18140), (1814, 15620), (2840, 9977), (3124, 9070), (3628, 7810), (3905, 7256), (4535, 6248)]