28702870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 61762176

約数和(自身を除く): 33059306

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 73, 82, 137, 146, 205, 274, 287, 365, 410, 511, 574, 685, 730, 959, 1022, 1370, 1435, 1918, 2555, 2870, 2993, 4795, 5110, 5617, 5986, 9590, 10001, 11234, 14965, 20002, 20951, 28085, 29930, 39319, 41902, 50005, 56170, 70007, 78638, 100010, 104755, 140014, 196595, 209510, 350035, 393190, 410041, 700070, 820082, 2050205, 2870287, 4100410, 5740574, 14351435, 28702870]

約数ペア:

[(1, 28702870), (2, 14351435), (5, 5740574), (7, 4100410), (10, 2870287), (14, 2050205), (35, 820082), (41, 700070), (70, 410041), (73, 393190), (82, 350035), (137, 209510), (146, 196595), (205, 140014), (274, 104755), (287, 100010), (365, 78638), (410, 70007), (511, 56170), (574, 50005), (685, 41902), (730, 39319), (959, 29930), (1022, 28085), (1370, 20951), (1435, 20002), (1918, 14965), (2555, 11234), (2870, 10001), (2993, 9590), (4795, 5986), (5110, 5617)]