256265282

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{857}}^1$

素因数の和:963

約数の個数: 64

約数和(自身を含む): 498161664

約数和(自身を除く): 241896382

約数列:

[1, 2, 7, 13, 14, 26, 31, 53, 62, 91, 106, 182, 217, 371, 403, 434, 689, 742, 806, 857, 1378, 1643, 1714, 2821, 3286, 4823, 5642, 5999, 9646, 11141, 11501, 11998, 21359, 22282, 23002, 26567, 42718, 45421, 53134, 77987, 90842, 149513, 155974, 185969, 299026, 317947, 345371, 371938, 590473, 635894, 690742, 1180946, 1408051, 2417597, 2816102, 4133311, 4835194, 8266622, 9856357, 18304663, 19712714, 36609326, 128132641, 256265282]

約数ペア:

[(1, 256265282), (2, 128132641), (7, 36609326), (13, 19712714), (14, 18304663), (26, 9856357), (31, 8266622), (53, 4835194), (62, 4133311), (91, 2816102), (106, 2417597), (182, 1408051), (217, 1180946), (371, 690742), (403, 635894), (434, 590473), (689, 371938), (742, 345371), (806, 317947), (857, 299026), (1378, 185969), (1643, 155974), (1714, 149513), (2821, 90842), (3286, 77987), (4823, 53134), (5642, 45421), (5999, 42718), (9646, 26567), (11141, 23002), (11501, 22282), (11998, 21359)]