81946240

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:354

約数の個数: 128

約数和(自身を含む): 215913600

約数和(自身を除く): 133967360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 128, 152, 160, 184, 190, 230, 293, 304, 320, 368, 380, 437, 460, 586, 608, 640, 736, 760, 874, 920, 1172, 1216, 1465, 1472, 1520, 1748, 1840, 2185, 2344, 2432, 2930, 2944, 3040, 3496, 3680, 4370, 4688, 5567, 5860, 6080, 6739, 6992, 7360, 8740, 9376, 11134, 11720, 12160, 13478, 13984, 14720, 17480, 18752, 22268, 23440, 26956, 27835, 27968, 33695, 34960, 37504, 44536, 46880, 53912, 55670, 55936, 67390, 69920, 89072, 93760, 107824, 111340, 128041, 134780, 139840, 178144, 187520, 215648, 222680, 256082, 269560, 279680, 356288, 431296, 445360, 512164, 539120, 640205, 712576, 862592, 890720, 1024328, 1078240, 1280410, 1781440, 2048656, 2156480, 2560820, 3562880, 4097312, 4312960, 5121640, 8194624, 10243280, 16389248, 20486560, 40973120, 81946240]

約数ペア:

[(1, 81946240), (2, 40973120), (4, 20486560), (5, 16389248), (8, 10243280), (10, 8194624), (16, 5121640), (19, 4312960), (20, 4097312), (23, 3562880), (32, 2560820), (38, 2156480), (40, 2048656), (46, 1781440), (64, 1280410), (76, 1078240), (80, 1024328), (92, 890720), (95, 862592), (115, 712576), (128, 640205), (152, 539120), (160, 512164), (184, 445360), (190, 431296), (230, 356288), (293, 279680), (304, 269560), (320, 256082), (368, 222680), (380, 215648), (437, 187520), (460, 178144), (586, 139840), (608, 134780), (640, 128041), (736, 111340), (760, 107824), (874, 93760), (920, 89072), (1172, 69920), (1216, 67390), (1465, 55936), (1472, 55670), (1520, 53912), (1748, 46880), (1840, 44536), (2185, 37504), (2344, 34960), (2432, 33695), (2930, 27968), (2944, 27835), (3040, 26956), (3496, 23440), (3680, 22268), (4370, 18752), (4688, 17480), (5567, 14720), (5860, 13984), (6080, 13478), (6739, 12160), (6992, 11720), (7360, 11134), (8740, 9376)]