661547520

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:612

約数の個数: 320

約数和(自身を含む): 2492519040

約数和(自身を除く): 1830971520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 85, 90, 96, 102, 108, 120, 128, 135, 136, 144, 153, 160, 170, 180, 192, 204, 216, 240, 255, 256, 270, 272, 288, 306, 320, 340, 360, 384, 408, 432, 459, 480, 510, 512, 540, 544, 563, 576, 612, 640, 680, 720, 765, 768, 816, 864, 918, 960, 1020, 1080, 1088, 1126, 1152, 1224, 1280, 1360, 1440, 1530, 1536, 1632, 1689, 1728, 1836, 1920, 2040, 2160, 2176, 2252, 2295, 2304, 2448, 2560, 2720, 2815, 2880, 3060, 3264, 3378, 3456, 3672, 3840, 4080, 4320, 4352, 4504, 4590, 4608, 4896, 5067, 5440, 5630, 5760, 6120, 6528, 6756, 6912, 7344, 7680, 8160, 8445, 8640, 8704, 9008, 9180, 9571, 9792, 10134, 10880, 11260, 11520, 12240, 13056, 13512, 13824, 14688, 15201, 16320, 16890, 17280, 18016, 18360, 19142, 19584, 20268, 21760, 22520, 23040, 24480, 25335, 26112, 27024, 28713, 29376, 30402, 32640, 33780, 34560, 36032, 36720, 38284, 39168, 40536, 43520, 45040, 47855, 48960, 50670, 54048, 57426, 58752, 60804, 65280, 67560, 69120, 72064, 73440, 76005, 76568, 78336, 81072, 86139, 90080, 95710, 97920, 101340, 108096, 114852, 117504, 121608, 130560, 135120, 143565, 144128, 146880, 152010, 153136, 162144, 172278, 180160, 191420, 195840, 202680, 216192, 229704, 235008, 243216, 258417, 270240, 287130, 288256, 293760, 304020, 306272, 324288, 344556, 360320, 382840, 391680, 405360, 430695, 432384, 459408, 486432, 516834, 540480, 574260, 587520, 608040, 612544, 648576, 689112, 720640, 765680, 810720, 861390, 864768, 918816, 972864, 1033668, 1080960, 1148520, 1175040, 1216080, 1225088, 1292085, 1297152, 1378224, 1441280, 1531360, 1621440, 1722780, 1837632, 1945728, 2067336, 2161920, 2297040, 2432160, 2450176, 2584170, 2594304, 2756448, 3062720, 3242880, 3445560, 3675264, 3891456, 4134672, 4323840, 4594080, 4864320, 4900352, 5168340, 5512896, 6125440, 6485760, 6891120, 7350528, 7782912, 8269344, 9188160, 9728640, 10336680, 11025792, 12250880, 12971520, 13782240, 14701056, 16538688, 18376320, 19457280, 20673360, 22051584, 24501760, 27564480, 33077376, 36752640, 38914560, 41346720, 44103168, 55128960, 66154752, 73505280, 82693440, 110257920, 132309504, 165386880, 220515840, 330773760, 661547520]

約数ペア:

[(1, 661547520), (2, 330773760), (3, 220515840), (4, 165386880), (5, 132309504), (6, 110257920), (8, 82693440), (9, 73505280), (10, 66154752), (12, 55128960), (15, 44103168), (16, 41346720), (17, 38914560), (18, 36752640), (20, 33077376), (24, 27564480), (27, 24501760), (30, 22051584), (32, 20673360), (34, 19457280), (36, 18376320), (40, 16538688), (45, 14701056), (48, 13782240), (51, 12971520), (54, 12250880), (60, 11025792), (64, 10336680), (68, 9728640), (72, 9188160), (80, 8269344), (85, 7782912), (90, 7350528), (96, 6891120), (102, 6485760), (108, 6125440), (120, 5512896), (128, 5168340), (135, 4900352), (136, 4864320), (144, 4594080), (153, 4323840), (160, 4134672), (170, 3891456), (180, 3675264), (192, 3445560), (204, 3242880), (216, 3062720), (240, 2756448), (255, 2594304), (256, 2584170), (270, 2450176), (272, 2432160), (288, 2297040), (306, 2161920), (320, 2067336), (340, 1945728), (360, 1837632), (384, 1722780), (408, 1621440), (432, 1531360), (459, 1441280), (480, 1378224), (510, 1297152), (512, 1292085), (540, 1225088), (544, 1216080), (563, 1175040), (576, 1148520), (612, 1080960), (640, 1033668), (680, 972864), (720, 918816), (765, 864768), (768, 861390), (816, 810720), (864, 765680), (918, 720640), (960, 689112), (1020, 648576), (1080, 612544), (1088, 608040), (1126, 587520), (1152, 574260), (1224, 540480), (1280, 516834), (1360, 486432), (1440, 459408), (1530, 432384), (1536, 430695), (1632, 405360), (1689, 391680), (1728, 382840), (1836, 360320), (1920, 344556), (2040, 324288), (2160, 306272), (2176, 304020), (2252, 293760), (2295, 288256), (2304, 287130), (2448, 270240), (2560, 258417), (2720, 243216), (2815, 235008), (2880, 229704), (3060, 216192), (3264, 202680), (3378, 195840), (3456, 191420), (3672, 180160), (3840, 172278), (4080, 162144), (4320, 153136), (4352, 152010), (4504, 146880), (4590, 144128), (4608, 143565), (4896, 135120), (5067, 130560), (5440, 121608), (5630, 117504), (5760, 114852), (6120, 108096), (6528, 101340), (6756, 97920), (6912, 95710), (7344, 90080), (7680, 86139), (8160, 81072), (8445, 78336), (8640, 76568), (8704, 76005), (9008, 73440), (9180, 72064), (9571, 69120), (9792, 67560), (10134, 65280), (10880, 60804), (11260, 58752), (11520, 57426), (12240, 54048), (13056, 50670), (13512, 48960), (13824, 47855), (14688, 45040), (15201, 43520), (16320, 40536), (16890, 39168), (17280, 38284), (18016, 36720), (18360, 36032), (19142, 34560), (19584, 33780), (20268, 32640), (21760, 30402), (22520, 29376), (23040, 28713), (24480, 27024), (25335, 26112)]