656584320

素因数分解:

$2^7\times 3^1\times 5^1\times 7^3\times {\mathrm{997}}^1$

素因数の和:1040

約数の個数: 256

約数和(自身を含む): 2443104000

約数和(自身を除く): 1786519680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 343, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 686, 735, 784, 840, 896, 960, 980, 997, 1029, 1120, 1176, 1344, 1372, 1470, 1568, 1680, 1715, 1920, 1960, 1994, 2058, 2240, 2352, 2688, 2744, 2940, 2991, 3136, 3360, 3430, 3920, 3988, 4116, 4480, 4704, 4985, 5145, 5488, 5880, 5982, 6272, 6720, 6860, 6979, 7840, 7976, 8232, 9408, 9970, 10290, 10976, 11760, 11964, 13440, 13720, 13958, 14955, 15680, 15952, 16464, 18816, 19940, 20580, 20937, 21952, 23520, 23928, 27440, 27916, 29910, 31360, 31904, 32928, 34895, 39880, 41160, 41874, 43904, 47040, 47856, 48853, 54880, 55832, 59820, 63808, 65856, 69790, 79760, 82320, 83748, 94080, 95712, 97706, 104685, 109760, 111664, 119640, 127616, 131712, 139580, 146559, 159520, 164640, 167496, 191424, 195412, 209370, 219520, 223328, 239280, 244265, 279160, 293118, 319040, 329280, 334992, 341971, 382848, 390824, 418740, 446656, 478560, 488530, 558320, 586236, 638080, 658560, 669984, 683942, 732795, 781648, 837480, 893312, 957120, 977060, 1025913, 1116640, 1172472, 1339968, 1367884, 1465590, 1563296, 1674960, 1709855, 1914240, 1954120, 2051826, 2233280, 2344944, 2679936, 2735768, 2931180, 3126592, 3349920, 3419710, 3908240, 4103652, 4466560, 4689888, 5129565, 5471536, 5862360, 6253184, 6699840, 6839420, 7816480, 8207304, 9379776, 10259130, 10943072, 11724720, 13399680, 13678840, 15632960, 16414608, 18759552, 20518260, 21886144, 23449440, 27357680, 31265920, 32829216, 41036520, 43772288, 46898880, 54715360, 65658432, 82073040, 93797760, 109430720, 131316864, 164146080, 218861440, 328292160, 656584320]

約数ペア:

[(1, 656584320), (2, 328292160), (3, 218861440), (4, 164146080), (5, 131316864), (6, 109430720), (7, 93797760), (8, 82073040), (10, 65658432), (12, 54715360), (14, 46898880), (15, 43772288), (16, 41036520), (20, 32829216), (21, 31265920), (24, 27357680), (28, 23449440), (30, 21886144), (32, 20518260), (35, 18759552), (40, 16414608), (42, 15632960), (48, 13678840), (49, 13399680), (56, 11724720), (60, 10943072), (64, 10259130), (70, 9379776), (80, 8207304), (84, 7816480), (96, 6839420), (98, 6699840), (105, 6253184), (112, 5862360), (120, 5471536), (128, 5129565), (140, 4689888), (147, 4466560), (160, 4103652), (168, 3908240), (192, 3419710), (196, 3349920), (210, 3126592), (224, 2931180), (240, 2735768), (245, 2679936), (280, 2344944), (294, 2233280), (320, 2051826), (336, 1954120), (343, 1914240), (384, 1709855), (392, 1674960), (420, 1563296), (448, 1465590), (480, 1367884), (490, 1339968), (560, 1172472), (588, 1116640), (640, 1025913), (672, 977060), (686, 957120), (735, 893312), (784, 837480), (840, 781648), (896, 732795), (960, 683942), (980, 669984), (997, 658560), (1029, 638080), (1120, 586236), (1176, 558320), (1344, 488530), (1372, 478560), (1470, 446656), (1568, 418740), (1680, 390824), (1715, 382848), (1920, 341971), (1960, 334992), (1994, 329280), (2058, 319040), (2240, 293118), (2352, 279160), (2688, 244265), (2744, 239280), (2940, 223328), (2991, 219520), (3136, 209370), (3360, 195412), (3430, 191424), (3920, 167496), (3988, 164640), (4116, 159520), (4480, 146559), (4704, 139580), (4985, 131712), (5145, 127616), (5488, 119640), (5880, 111664), (5982, 109760), (6272, 104685), (6720, 97706), (6860, 95712), (6979, 94080), (7840, 83748), (7976, 82320), (8232, 79760), (9408, 69790), (9970, 65856), (10290, 63808), (10976, 59820), (11760, 55832), (11964, 54880), (13440, 48853), (13720, 47856), (13958, 47040), (14955, 43904), (15680, 41874), (15952, 41160), (16464, 39880), (18816, 34895), (19940, 32928), (20580, 31904), (20937, 31360), (21952, 29910), (23520, 27916), (23928, 27440)]