661721088

素因数分解:

$2^{12}\times 3^1\times 7^3\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 208

約数和(自身を含む): 2070684800

約数和(自身を除く): 1408963712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 64, 84, 96, 98, 112, 128, 147, 157, 168, 192, 196, 224, 256, 294, 314, 336, 343, 384, 392, 448, 471, 512, 588, 628, 672, 686, 768, 784, 896, 942, 1024, 1029, 1099, 1176, 1256, 1344, 1372, 1536, 1568, 1792, 1884, 2048, 2058, 2198, 2352, 2512, 2688, 2744, 3072, 3136, 3297, 3584, 3768, 4096, 4116, 4396, 4704, 5024, 5376, 5488, 6144, 6272, 6594, 7168, 7536, 7693, 8232, 8792, 9408, 10048, 10752, 10976, 12288, 12544, 13188, 14336, 15072, 15386, 16464, 17584, 18816, 20096, 21504, 21952, 23079, 25088, 26376, 28672, 30144, 30772, 32928, 35168, 37632, 40192, 43008, 43904, 46158, 50176, 52752, 53851, 60288, 61544, 65856, 70336, 75264, 80384, 86016, 87808, 92316, 100352, 105504, 107702, 120576, 123088, 131712, 140672, 150528, 160768, 161553, 175616, 184632, 200704, 211008, 215404, 241152, 246176, 263424, 281344, 301056, 321536, 323106, 351232, 369264, 422016, 430808, 482304, 492352, 526848, 562688, 602112, 643072, 646212, 702464, 738528, 844032, 861616, 964608, 984704, 1053696, 1125376, 1292424, 1404928, 1477056, 1688064, 1723232, 1929216, 1969408, 2107392, 2250752, 2584848, 2954112, 3376128, 3446464, 3938816, 4214784, 4501504, 5169696, 5908224, 6752256, 6892928, 7877632, 10339392, 11816448, 13504512, 13785856, 15755264, 20678784, 23632896, 27571712, 31510528, 41357568, 47265792, 55143424, 82715136, 94531584, 110286848, 165430272, 220573696, 330860544, 661721088]

約数ペア:

[(1, 661721088), (2, 330860544), (3, 220573696), (4, 165430272), (6, 110286848), (7, 94531584), (8, 82715136), (12, 55143424), (14, 47265792), (16, 41357568), (21, 31510528), (24, 27571712), (28, 23632896), (32, 20678784), (42, 15755264), (48, 13785856), (49, 13504512), (56, 11816448), (64, 10339392), (84, 7877632), (96, 6892928), (98, 6752256), (112, 5908224), (128, 5169696), (147, 4501504), (157, 4214784), (168, 3938816), (192, 3446464), (196, 3376128), (224, 2954112), (256, 2584848), (294, 2250752), (314, 2107392), (336, 1969408), (343, 1929216), (384, 1723232), (392, 1688064), (448, 1477056), (471, 1404928), (512, 1292424), (588, 1125376), (628, 1053696), (672, 984704), (686, 964608), (768, 861616), (784, 844032), (896, 738528), (942, 702464), (1024, 646212), (1029, 643072), (1099, 602112), (1176, 562688), (1256, 526848), (1344, 492352), (1372, 482304), (1536, 430808), (1568, 422016), (1792, 369264), (1884, 351232), (2048, 323106), (2058, 321536), (2198, 301056), (2352, 281344), (2512, 263424), (2688, 246176), (2744, 241152), (3072, 215404), (3136, 211008), (3297, 200704), (3584, 184632), (3768, 175616), (4096, 161553), (4116, 160768), (4396, 150528), (4704, 140672), (5024, 131712), (5376, 123088), (5488, 120576), (6144, 107702), (6272, 105504), (6594, 100352), (7168, 92316), (7536, 87808), (7693, 86016), (8232, 80384), (8792, 75264), (9408, 70336), (10048, 65856), (10752, 61544), (10976, 60288), (12288, 53851), (12544, 52752), (13188, 50176), (14336, 46158), (15072, 43904), (15386, 43008), (16464, 40192), (17584, 37632), (18816, 35168), (20096, 32928), (21504, 30772), (21952, 30144), (23079, 28672), (25088, 26376)]