81107200

素因数分解:

$2^8\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:97

約数の個数: 216

約数和(自身を含む): 228110400

約数和(自身を除く): 147003200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 25, 29, 32, 38, 40, 46, 50, 58, 64, 76, 80, 92, 95, 100, 115, 116, 128, 145, 152, 160, 184, 190, 200, 230, 232, 256, 290, 304, 320, 368, 380, 400, 437, 460, 464, 475, 551, 575, 580, 608, 640, 667, 725, 736, 760, 800, 874, 920, 928, 950, 1102, 1150, 1160, 1216, 1280, 1334, 1450, 1472, 1520, 1600, 1748, 1840, 1856, 1900, 2185, 2204, 2300, 2320, 2432, 2668, 2755, 2900, 2944, 3040, 3200, 3335, 3496, 3680, 3712, 3800, 4370, 4408, 4600, 4640, 4864, 5336, 5510, 5800, 5888, 6080, 6400, 6670, 6992, 7360, 7424, 7600, 8740, 8816, 9200, 9280, 10672, 10925, 11020, 11600, 12160, 12673, 13340, 13775, 13984, 14720, 15200, 16675, 17480, 17632, 18400, 18560, 21344, 21850, 22040, 23200, 24320, 25346, 26680, 27550, 27968, 29440, 30400, 33350, 34960, 35264, 36800, 37120, 42688, 43700, 44080, 46400, 50692, 53360, 55100, 55936, 60800, 63365, 66700, 69920, 70528, 73600, 85376, 87400, 88160, 92800, 101384, 106720, 110200, 111872, 121600, 126730, 133400, 139840, 141056, 147200, 170752, 174800, 176320, 185600, 202768, 213440, 220400, 253460, 266800, 279680, 316825, 349600, 352640, 405536, 426880, 440800, 506920, 533600, 559360, 633650, 699200, 705280, 811072, 853760, 881600, 1013840, 1067200, 1267300, 1398400, 1622144, 1763200, 2027680, 2134400, 2534600, 2796800, 3244288, 3526400, 4055360, 4268800, 5069200, 8110720, 10138400, 16221440, 20276800, 40553600, 81107200]

約数ペア:

[(1, 81107200), (2, 40553600), (4, 20276800), (5, 16221440), (8, 10138400), (10, 8110720), (16, 5069200), (19, 4268800), (20, 4055360), (23, 3526400), (25, 3244288), (29, 2796800), (32, 2534600), (38, 2134400), (40, 2027680), (46, 1763200), (50, 1622144), (58, 1398400), (64, 1267300), (76, 1067200), (80, 1013840), (92, 881600), (95, 853760), (100, 811072), (115, 705280), (116, 699200), (128, 633650), (145, 559360), (152, 533600), (160, 506920), (184, 440800), (190, 426880), (200, 405536), (230, 352640), (232, 349600), (256, 316825), (290, 279680), (304, 266800), (320, 253460), (368, 220400), (380, 213440), (400, 202768), (437, 185600), (460, 176320), (464, 174800), (475, 170752), (551, 147200), (575, 141056), (580, 139840), (608, 133400), (640, 126730), (667, 121600), (725, 111872), (736, 110200), (760, 106720), (800, 101384), (874, 92800), (920, 88160), (928, 87400), (950, 85376), (1102, 73600), (1150, 70528), (1160, 69920), (1216, 66700), (1280, 63365), (1334, 60800), (1450, 55936), (1472, 55100), (1520, 53360), (1600, 50692), (1748, 46400), (1840, 44080), (1856, 43700), (1900, 42688), (2185, 37120), (2204, 36800), (2300, 35264), (2320, 34960), (2432, 33350), (2668, 30400), (2755, 29440), (2900, 27968), (2944, 27550), (3040, 26680), (3200, 25346), (3335, 24320), (3496, 23200), (3680, 22040), (3712, 21850), (3800, 21344), (4370, 18560), (4408, 18400), (4600, 17632), (4640, 17480), (4864, 16675), (5336, 15200), (5510, 14720), (5800, 13984), (5888, 13775), (6080, 13340), (6400, 12673), (6670, 12160), (6992, 11600), (7360, 11020), (7424, 10925), (7600, 10672), (8740, 9280), (8816, 9200)]