256011392

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:774

約数の個数: 128

約数和(自身を含む): 648883200

約数和(自身を除く): 392871808

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 64, 91, 104, 112, 124, 128, 182, 208, 217, 224, 248, 364, 403, 416, 434, 448, 496, 709, 728, 806, 832, 868, 896, 992, 1418, 1456, 1612, 1664, 1736, 1984, 2821, 2836, 2912, 3224, 3472, 3968, 4963, 5642, 5672, 5824, 6448, 6944, 9217, 9926, 11284, 11344, 11648, 12896, 13888, 18434, 19852, 21979, 22568, 22688, 25792, 27776, 36868, 39704, 43958, 45136, 45376, 51584, 64519, 73736, 79408, 87916, 90272, 90752, 129038, 147472, 153853, 158816, 175832, 180544, 258076, 285727, 294944, 307706, 317632, 351664, 361088, 516152, 571454, 589888, 615412, 635264, 703328, 1032304, 1142908, 1179776, 1230824, 1406656, 2000089, 2064608, 2285816, 2461648, 2813312, 4000178, 4129216, 4571632, 4923296, 8000356, 8258432, 9143264, 9846592, 16000712, 18286528, 19693184, 32001424, 36573056, 64002848, 128005696, 256011392]

約数ペア:

[(1, 256011392), (2, 128005696), (4, 64002848), (7, 36573056), (8, 32001424), (13, 19693184), (14, 18286528), (16, 16000712), (26, 9846592), (28, 9143264), (31, 8258432), (32, 8000356), (52, 4923296), (56, 4571632), (62, 4129216), (64, 4000178), (91, 2813312), (104, 2461648), (112, 2285816), (124, 2064608), (128, 2000089), (182, 1406656), (208, 1230824), (217, 1179776), (224, 1142908), (248, 1032304), (364, 703328), (403, 635264), (416, 615412), (434, 589888), (448, 571454), (496, 516152), (709, 361088), (728, 351664), (806, 317632), (832, 307706), (868, 294944), (896, 285727), (992, 258076), (1418, 180544), (1456, 175832), (1612, 158816), (1664, 153853), (1736, 147472), (1984, 129038), (2821, 90752), (2836, 90272), (2912, 87916), (3224, 79408), (3472, 73736), (3968, 64519), (4963, 51584), (5642, 45376), (5672, 45136), (5824, 43958), (6448, 39704), (6944, 36868), (9217, 27776), (9926, 25792), (11284, 22688), (11344, 22568), (11648, 21979), (12896, 19852), (13888, 18434)]