20171912320

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{2137}}^1$

素因数の和:2220

約数の個数: 256

約数和(自身を含む): 57572064000

約数和(自身を除く): 37400151680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 49, 56, 64, 70, 80, 86, 98, 112, 128, 140, 160, 172, 196, 215, 224, 245, 280, 301, 320, 343, 344, 392, 430, 448, 490, 560, 602, 640, 686, 688, 784, 860, 896, 980, 1120, 1204, 1372, 1376, 1505, 1568, 1715, 1720, 1960, 2107, 2137, 2240, 2408, 2744, 2752, 3010, 3136, 3430, 3440, 3920, 4214, 4274, 4480, 4816, 5488, 5504, 6020, 6272, 6860, 6880, 7840, 8428, 8548, 9632, 10535, 10685, 10976, 12040, 13720, 13760, 14749, 14959, 15680, 16856, 17096, 19264, 21070, 21370, 21952, 24080, 27440, 27520, 29498, 29918, 31360, 33712, 34192, 38528, 42140, 42740, 43904, 48160, 54880, 58996, 59836, 67424, 68384, 73745, 74795, 84280, 85480, 91891, 96320, 104713, 109760, 117992, 119672, 134848, 136768, 147490, 149590, 168560, 170960, 183782, 192640, 209426, 219520, 235984, 239344, 269696, 273536, 294980, 299180, 337120, 341920, 367564, 418852, 459455, 471968, 478688, 523565, 589960, 598360, 643237, 674240, 683840, 732991, 735128, 837704, 918910, 943936, 957376, 1047130, 1179920, 1196720, 1286474, 1348480, 1367680, 1465982, 1470256, 1675408, 1837820, 1887872, 1914752, 2094260, 2359840, 2393440, 2572948, 2931964, 2940512, 3216185, 3350816, 3664955, 3675640, 4188520, 4502659, 4719680, 4786880, 5145896, 5863928, 5881024, 6432370, 6701632, 7329910, 7351280, 8377040, 9005318, 9439360, 9573760, 10291792, 11727856, 11762048, 12864740, 13403264, 14659820, 14702560, 16754080, 18010636, 20583584, 22513295, 23455712, 25729480, 29319640, 29405120, 31518613, 33508160, 36021272, 41167168, 45026590, 46911424, 51458960, 58639280, 58810240, 63037226, 67016320, 72042544, 82334336, 90053180, 93822848, 102917920, 117278560, 126074452, 144085088, 157593065, 180106360, 205835840, 234557120, 252148904, 288170176, 315186130, 360212720, 411671680, 469114240, 504297808, 576340352, 630372260, 720425440, 1008595616, 1260744520, 1440850880, 2017191232, 2521489040, 2881701760, 4034382464, 5042978080, 10085956160, 20171912320]

約数ペア:

[(1, 20171912320), (2, 10085956160), (4, 5042978080), (5, 4034382464), (7, 2881701760), (8, 2521489040), (10, 2017191232), (14, 1440850880), (16, 1260744520), (20, 1008595616), (28, 720425440), (32, 630372260), (35, 576340352), (40, 504297808), (43, 469114240), (49, 411671680), (56, 360212720), (64, 315186130), (70, 288170176), (80, 252148904), (86, 234557120), (98, 205835840), (112, 180106360), (128, 157593065), (140, 144085088), (160, 126074452), (172, 117278560), (196, 102917920), (215, 93822848), (224, 90053180), (245, 82334336), (280, 72042544), (301, 67016320), (320, 63037226), (343, 58810240), (344, 58639280), (392, 51458960), (430, 46911424), (448, 45026590), (490, 41167168), (560, 36021272), (602, 33508160), (640, 31518613), (686, 29405120), (688, 29319640), (784, 25729480), (860, 23455712), (896, 22513295), (980, 20583584), (1120, 18010636), (1204, 16754080), (1372, 14702560), (1376, 14659820), (1505, 13403264), (1568, 12864740), (1715, 11762048), (1720, 11727856), (1960, 10291792), (2107, 9573760), (2137, 9439360), (2240, 9005318), (2408, 8377040), (2744, 7351280), (2752, 7329910), (3010, 6701632), (3136, 6432370), (3430, 5881024), (3440, 5863928), (3920, 5145896), (4214, 4786880), (4274, 4719680), (4480, 4502659), (4816, 4188520), (5488, 3675640), (5504, 3664955), (6020, 3350816), (6272, 3216185), (6860, 2940512), (6880, 2931964), (7840, 2572948), (8428, 2393440), (8548, 2359840), (9632, 2094260), (10535, 1914752), (10685, 1887872), (10976, 1837820), (12040, 1675408), (13720, 1470256), (13760, 1465982), (14749, 1367680), (14959, 1348480), (15680, 1286474), (16856, 1196720), (17096, 1179920), (19264, 1047130), (21070, 957376), (21370, 943936), (21952, 918910), (24080, 837704), (27440, 735128), (27520, 732991), (29498, 683840), (29918, 674240), (31360, 643237), (33712, 598360), (34192, 589960), (38528, 523565), (42140, 478688), (42740, 471968), (43904, 459455), (48160, 418852), (54880, 367564), (58996, 341920), (59836, 337120), (67424, 299180), (68384, 294980), (73745, 273536), (74795, 269696), (84280, 239344), (85480, 235984), (91891, 219520), (96320, 209426), (104713, 192640), (109760, 183782), (117992, 170960), (119672, 168560), (134848, 149590), (136768, 147490)]