20392320

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:97

約数の個数: 256

約数和(自身を含む): 75398400

約数和(自身を除く): 55006080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 32, 38, 39, 40, 43, 48, 52, 57, 60, 64, 65, 76, 78, 80, 86, 95, 96, 104, 114, 120, 128, 129, 130, 152, 156, 160, 172, 190, 192, 195, 208, 215, 228, 240, 247, 258, 260, 285, 304, 312, 320, 344, 380, 384, 390, 416, 430, 456, 480, 494, 516, 520, 559, 570, 608, 624, 640, 645, 688, 741, 760, 780, 817, 832, 860, 912, 960, 988, 1032, 1040, 1118, 1140, 1216, 1235, 1248, 1290, 1376, 1482, 1520, 1560, 1634, 1664, 1677, 1720, 1824, 1920, 1976, 2064, 2080, 2236, 2280, 2432, 2451, 2470, 2496, 2580, 2752, 2795, 2964, 3040, 3120, 3268, 3354, 3440, 3648, 3705, 3952, 4085, 4128, 4160, 4472, 4560, 4902, 4940, 4992, 5160, 5504, 5590, 5928, 6080, 6240, 6536, 6708, 6880, 7296, 7410, 7904, 8170, 8256, 8320, 8385, 8944, 9120, 9804, 9880, 10320, 10621, 11180, 11856, 12160, 12255, 12480, 13072, 13416, 13760, 14820, 15808, 16340, 16512, 16770, 17888, 18240, 19608, 19760, 20640, 21242, 22360, 23712, 24510, 24960, 26144, 26832, 27520, 29640, 31616, 31863, 32680, 33540, 35776, 36480, 39216, 39520, 41280, 42484, 44720, 47424, 49020, 52288, 53105, 53664, 59280, 63726, 65360, 67080, 71552, 78432, 79040, 82560, 84968, 89440, 94848, 98040, 104576, 106210, 107328, 118560, 127452, 130720, 134160, 156864, 158080, 159315, 169936, 178880, 196080, 212420, 214656, 237120, 254904, 261440, 268320, 313728, 318630, 339872, 357760, 392160, 424840, 474240, 509808, 522880, 536640, 637260, 679744, 784320, 849680, 1019616, 1073280, 1274520, 1359488, 1568640, 1699360, 2039232, 2549040, 3398720, 4078464, 5098080, 6797440, 10196160, 20392320]

約数ペア:

[(1, 20392320), (2, 10196160), (3, 6797440), (4, 5098080), (5, 4078464), (6, 3398720), (8, 2549040), (10, 2039232), (12, 1699360), (13, 1568640), (15, 1359488), (16, 1274520), (19, 1073280), (20, 1019616), (24, 849680), (26, 784320), (30, 679744), (32, 637260), (38, 536640), (39, 522880), (40, 509808), (43, 474240), (48, 424840), (52, 392160), (57, 357760), (60, 339872), (64, 318630), (65, 313728), (76, 268320), (78, 261440), (80, 254904), (86, 237120), (95, 214656), (96, 212420), (104, 196080), (114, 178880), (120, 169936), (128, 159315), (129, 158080), (130, 156864), (152, 134160), (156, 130720), (160, 127452), (172, 118560), (190, 107328), (192, 106210), (195, 104576), (208, 98040), (215, 94848), (228, 89440), (240, 84968), (247, 82560), (258, 79040), (260, 78432), (285, 71552), (304, 67080), (312, 65360), (320, 63726), (344, 59280), (380, 53664), (384, 53105), (390, 52288), (416, 49020), (430, 47424), (456, 44720), (480, 42484), (494, 41280), (516, 39520), (520, 39216), (559, 36480), (570, 35776), (608, 33540), (624, 32680), (640, 31863), (645, 31616), (688, 29640), (741, 27520), (760, 26832), (780, 26144), (817, 24960), (832, 24510), (860, 23712), (912, 22360), (960, 21242), (988, 20640), (1032, 19760), (1040, 19608), (1118, 18240), (1140, 17888), (1216, 16770), (1235, 16512), (1248, 16340), (1290, 15808), (1376, 14820), (1482, 13760), (1520, 13416), (1560, 13072), (1634, 12480), (1664, 12255), (1677, 12160), (1720, 11856), (1824, 11180), (1920, 10621), (1976, 10320), (2064, 9880), (2080, 9804), (2236, 9120), (2280, 8944), (2432, 8385), (2451, 8320), (2470, 8256), (2496, 8170), (2580, 7904), (2752, 7410), (2795, 7296), (2964, 6880), (3040, 6708), (3120, 6536), (3268, 6240), (3354, 6080), (3440, 5928), (3648, 5590), (3705, 5504), (3952, 5160), (4085, 4992), (4128, 4940), (4160, 4902), (4472, 4560)]