255820370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:340

約数の個数: 96

約数和(自身を含む): 543905280

約数和(自身を除く): 288084910

約数列:

[1, 2, 5, 10, 13, 19, 26, 31, 38, 62, 65, 95, 130, 155, 169, 190, 247, 257, 310, 338, 403, 494, 514, 589, 806, 845, 1178, 1235, 1285, 1690, 2015, 2470, 2570, 2945, 3211, 3341, 4030, 4883, 5239, 5890, 6422, 6682, 7657, 7967, 9766, 10478, 15314, 15934, 16055, 16705, 24415, 26195, 32110, 33410, 38285, 39835, 43433, 48830, 52390, 63479, 76570, 79670, 86866, 99541, 103571, 126958, 151373, 199082, 207142, 217165, 302746, 317395, 434330, 497705, 517855, 634790, 756865, 825227, 995410, 1035710, 1346423, 1513730, 1650454, 1967849, 2692846, 3935698, 4126135, 6732115, 8252270, 9839245, 13464230, 19678490, 25582037, 51164074, 127910185, 255820370]

約数ペア:

[(1, 255820370), (2, 127910185), (5, 51164074), (10, 25582037), (13, 19678490), (19, 13464230), (26, 9839245), (31, 8252270), (38, 6732115), (62, 4126135), (65, 3935698), (95, 2692846), (130, 1967849), (155, 1650454), (169, 1513730), (190, 1346423), (247, 1035710), (257, 995410), (310, 825227), (338, 756865), (403, 634790), (494, 517855), (514, 497705), (589, 434330), (806, 317395), (845, 302746), (1178, 217165), (1235, 207142), (1285, 199082), (1690, 151373), (2015, 126958), (2470, 103571), (2570, 99541), (2945, 86866), (3211, 79670), (3341, 76570), (4030, 63479), (4883, 52390), (5239, 48830), (5890, 43433), (6422, 39835), (6682, 38285), (7657, 33410), (7967, 32110), (9766, 26195), (10478, 24415), (15314, 16705), (15934, 16055)]