28712160

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:305

約数の個数: 144

約数和(自身を含む): 99380736

約数和(自身を除く): 70668576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 127, 144, 157, 160, 180, 240, 254, 288, 314, 360, 381, 471, 480, 508, 628, 635, 720, 762, 785, 942, 1016, 1143, 1256, 1270, 1413, 1440, 1524, 1570, 1884, 1905, 2032, 2286, 2355, 2512, 2540, 2826, 3048, 3140, 3768, 3810, 4064, 4572, 4710, 5024, 5080, 5652, 5715, 6096, 6280, 7065, 7536, 7620, 9144, 9420, 10160, 11304, 11430, 12192, 12560, 14130, 15072, 15240, 18288, 18840, 19939, 20320, 22608, 22860, 25120, 28260, 30480, 36576, 37680, 39878, 45216, 45720, 56520, 59817, 60960, 75360, 79756, 91440, 99695, 113040, 119634, 159512, 179451, 182880, 199390, 226080, 239268, 299085, 319024, 358902, 398780, 478536, 598170, 638048, 717804, 797560, 897255, 957072, 1196340, 1435608, 1595120, 1794510, 1914144, 2392680, 2871216, 3190240, 3589020, 4785360, 5742432, 7178040, 9570720, 14356080, 28712160]

約数ペア:

[(1, 28712160), (2, 14356080), (3, 9570720), (4, 7178040), (5, 5742432), (6, 4785360), (8, 3589020), (9, 3190240), (10, 2871216), (12, 2392680), (15, 1914144), (16, 1794510), (18, 1595120), (20, 1435608), (24, 1196340), (30, 957072), (32, 897255), (36, 797560), (40, 717804), (45, 638048), (48, 598170), (60, 478536), (72, 398780), (80, 358902), (90, 319024), (96, 299085), (120, 239268), (127, 226080), (144, 199390), (157, 182880), (160, 179451), (180, 159512), (240, 119634), (254, 113040), (288, 99695), (314, 91440), (360, 79756), (381, 75360), (471, 60960), (480, 59817), (508, 56520), (628, 45720), (635, 45216), (720, 39878), (762, 37680), (785, 36576), (942, 30480), (1016, 28260), (1143, 25120), (1256, 22860), (1270, 22608), (1413, 20320), (1440, 19939), (1524, 18840), (1570, 18288), (1884, 15240), (1905, 15072), (2032, 14130), (2286, 12560), (2355, 12192), (2512, 11430), (2540, 11304), (2826, 10160), (3048, 9420), (3140, 9144), (3768, 7620), (3810, 7536), (4064, 7065), (4572, 6280), (4710, 6096), (5024, 5715), (5080, 5652)]