21864960

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1$

素因数の和:115

約数の個数: 240

約数和(自身を含む): 82666584

約数和(自身を除く): 60801624

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 73, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 146, 156, 160, 180, 192, 195, 208, 219, 234, 240, 256, 260, 288, 292, 312, 320, 360, 365, 384, 390, 416, 438, 468, 480, 512, 520, 576, 584, 585, 624, 640, 657, 720, 730, 768, 780, 832, 876, 936, 949, 960, 1040, 1095, 1152, 1168, 1170, 1248, 1280, 1314, 1440, 1460, 1536, 1560, 1664, 1752, 1872, 1898, 1920, 2080, 2190, 2304, 2336, 2340, 2496, 2560, 2628, 2847, 2880, 2920, 3120, 3285, 3328, 3504, 3744, 3796, 3840, 4160, 4380, 4608, 4672, 4680, 4745, 4992, 5256, 5694, 5760, 5840, 6240, 6570, 6656, 7008, 7488, 7592, 7680, 8320, 8541, 8760, 9344, 9360, 9490, 9984, 10512, 11388, 11520, 11680, 12480, 13140, 14016, 14235, 14976, 15184, 16640, 17082, 17520, 18688, 18720, 18980, 19968, 21024, 22776, 23040, 23360, 24960, 26280, 28032, 28470, 29952, 30368, 33280, 34164, 35040, 37376, 37440, 37960, 42048, 42705, 45552, 46720, 49920, 52560, 56064, 56940, 59904, 60736, 68328, 70080, 74880, 75920, 84096, 85410, 91104, 93440, 99840, 105120, 112128, 113880, 121472, 136656, 140160, 149760, 151840, 168192, 170820, 182208, 186880, 210240, 227760, 242944, 273312, 280320, 299520, 303680, 336384, 341640, 364416, 420480, 455520, 485888, 546624, 560640, 607360, 683280, 728832, 840960, 911040, 1093248, 1214720, 1366560, 1457664, 1681920, 1822080, 2186496, 2429440, 2733120, 3644160, 4372992, 5466240, 7288320, 10932480, 21864960]

約数ペア:

[(1, 21864960), (2, 10932480), (3, 7288320), (4, 5466240), (5, 4372992), (6, 3644160), (8, 2733120), (9, 2429440), (10, 2186496), (12, 1822080), (13, 1681920), (15, 1457664), (16, 1366560), (18, 1214720), (20, 1093248), (24, 911040), (26, 840960), (30, 728832), (32, 683280), (36, 607360), (39, 560640), (40, 546624), (45, 485888), (48, 455520), (52, 420480), (60, 364416), (64, 341640), (65, 336384), (72, 303680), (73, 299520), (78, 280320), (80, 273312), (90, 242944), (96, 227760), (104, 210240), (117, 186880), (120, 182208), (128, 170820), (130, 168192), (144, 151840), (146, 149760), (156, 140160), (160, 136656), (180, 121472), (192, 113880), (195, 112128), (208, 105120), (219, 99840), (234, 93440), (240, 91104), (256, 85410), (260, 84096), (288, 75920), (292, 74880), (312, 70080), (320, 68328), (360, 60736), (365, 59904), (384, 56940), (390, 56064), (416, 52560), (438, 49920), (468, 46720), (480, 45552), (512, 42705), (520, 42048), (576, 37960), (584, 37440), (585, 37376), (624, 35040), (640, 34164), (657, 33280), (720, 30368), (730, 29952), (768, 28470), (780, 28032), (832, 26280), (876, 24960), (936, 23360), (949, 23040), (960, 22776), (1040, 21024), (1095, 19968), (1152, 18980), (1168, 18720), (1170, 18688), (1248, 17520), (1280, 17082), (1314, 16640), (1440, 15184), (1460, 14976), (1536, 14235), (1560, 14016), (1664, 13140), (1752, 12480), (1872, 11680), (1898, 11520), (1920, 11388), (2080, 10512), (2190, 9984), (2304, 9490), (2336, 9360), (2340, 9344), (2496, 8760), (2560, 8541), (2628, 8320), (2847, 7680), (2880, 7592), (2920, 7488), (3120, 7008), (3285, 6656), (3328, 6570), (3504, 6240), (3744, 5840), (3796, 5760), (3840, 5694), (4160, 5256), (4380, 4992), (4608, 4745), (4672, 4680)]