72157440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 288

約数和(自身を含む): 259015680

約数和(自身を除く): 186858240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 32, 38, 40, 43, 46, 48, 57, 60, 64, 69, 76, 80, 86, 92, 95, 96, 114, 115, 120, 128, 129, 138, 152, 160, 172, 184, 190, 192, 215, 228, 230, 240, 256, 258, 276, 285, 304, 320, 344, 345, 368, 380, 384, 430, 437, 456, 460, 480, 516, 552, 570, 608, 640, 645, 688, 690, 736, 760, 768, 817, 860, 874, 912, 920, 960, 989, 1032, 1104, 1140, 1216, 1280, 1290, 1311, 1376, 1380, 1472, 1520, 1634, 1720, 1748, 1824, 1840, 1920, 1978, 2064, 2185, 2208, 2280, 2432, 2451, 2580, 2622, 2752, 2760, 2944, 2967, 3040, 3268, 3440, 3496, 3648, 3680, 3840, 3956, 4085, 4128, 4370, 4416, 4560, 4864, 4902, 4945, 5160, 5244, 5504, 5520, 5888, 5934, 6080, 6536, 6555, 6880, 6992, 7296, 7360, 7912, 8170, 8256, 8740, 8832, 9120, 9804, 9890, 10320, 10488, 11008, 11040, 11868, 12160, 12255, 13072, 13110, 13760, 13984, 14592, 14720, 14835, 15824, 16340, 16512, 17480, 17664, 18240, 18791, 19608, 19780, 20640, 20976, 22080, 23736, 24320, 24510, 26144, 26220, 27520, 27968, 29440, 29670, 31648, 32680, 33024, 34960, 36480, 37582, 39216, 39560, 41280, 41952, 44160, 47472, 49020, 52288, 52440, 55040, 55936, 56373, 59340, 63296, 65360, 69920, 72960, 75164, 78432, 79120, 82560, 83904, 88320, 93955, 94944, 98040, 104576, 104880, 111872, 112746, 118680, 126592, 130720, 139840, 150328, 156864, 158240, 165120, 167808, 187910, 189888, 196080, 209152, 209760, 225492, 237360, 253184, 261440, 279680, 281865, 300656, 313728, 316480, 335616, 375820, 379776, 392160, 419520, 450984, 474720, 522880, 559360, 563730, 601312, 627456, 632960, 751640, 759552, 784320, 839040, 901968, 949440, 1045760, 1127460, 1202624, 1265920, 1503280, 1568640, 1678080, 1803936, 1898880, 2254920, 2405248, 3006560, 3137280, 3607872, 3797760, 4509840, 4810496, 6013120, 7215744, 9019680, 12026240, 14431488, 18039360, 24052480, 36078720, 72157440]

約数ペア:

[(1, 72157440), (2, 36078720), (3, 24052480), (4, 18039360), (5, 14431488), (6, 12026240), (8, 9019680), (10, 7215744), (12, 6013120), (15, 4810496), (16, 4509840), (19, 3797760), (20, 3607872), (23, 3137280), (24, 3006560), (30, 2405248), (32, 2254920), (38, 1898880), (40, 1803936), (43, 1678080), (46, 1568640), (48, 1503280), (57, 1265920), (60, 1202624), (64, 1127460), (69, 1045760), (76, 949440), (80, 901968), (86, 839040), (92, 784320), (95, 759552), (96, 751640), (114, 632960), (115, 627456), (120, 601312), (128, 563730), (129, 559360), (138, 522880), (152, 474720), (160, 450984), (172, 419520), (184, 392160), (190, 379776), (192, 375820), (215, 335616), (228, 316480), (230, 313728), (240, 300656), (256, 281865), (258, 279680), (276, 261440), (285, 253184), (304, 237360), (320, 225492), (344, 209760), (345, 209152), (368, 196080), (380, 189888), (384, 187910), (430, 167808), (437, 165120), (456, 158240), (460, 156864), (480, 150328), (516, 139840), (552, 130720), (570, 126592), (608, 118680), (640, 112746), (645, 111872), (688, 104880), (690, 104576), (736, 98040), (760, 94944), (768, 93955), (817, 88320), (860, 83904), (874, 82560), (912, 79120), (920, 78432), (960, 75164), (989, 72960), (1032, 69920), (1104, 65360), (1140, 63296), (1216, 59340), (1280, 56373), (1290, 55936), (1311, 55040), (1376, 52440), (1380, 52288), (1472, 49020), (1520, 47472), (1634, 44160), (1720, 41952), (1748, 41280), (1824, 39560), (1840, 39216), (1920, 37582), (1978, 36480), (2064, 34960), (2185, 33024), (2208, 32680), (2280, 31648), (2432, 29670), (2451, 29440), (2580, 27968), (2622, 27520), (2752, 26220), (2760, 26144), (2944, 24510), (2967, 24320), (3040, 23736), (3268, 22080), (3440, 20976), (3496, 20640), (3648, 19780), (3680, 19608), (3840, 18791), (3956, 18240), (4085, 17664), (4128, 17480), (4370, 16512), (4416, 16340), (4560, 15824), (4864, 14835), (4902, 14720), (4945, 14592), (5160, 13984), (5244, 13760), (5504, 13110), (5520, 13072), (5888, 12255), (5934, 12160), (6080, 11868), (6536, 11040), (6555, 11008), (6880, 10488), (6992, 10320), (7296, 9890), (7360, 9804), (7912, 9120), (8170, 8832), (8256, 8740)]