21762720

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:172

約数の個数: 288

約数和(自身を含む): 90574848

約数和(自身を除く): 68812128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 28, 30, 32, 34, 35, 36, 40, 42, 45, 48, 51, 56, 60, 63, 68, 70, 72, 80, 84, 85, 90, 96, 102, 105, 112, 119, 120, 126, 127, 136, 140, 144, 153, 160, 168, 170, 180, 204, 210, 224, 238, 240, 252, 254, 255, 272, 280, 288, 306, 315, 336, 340, 357, 360, 381, 408, 420, 476, 480, 504, 508, 510, 544, 560, 595, 612, 630, 635, 672, 680, 714, 720, 762, 765, 816, 840, 889, 952, 1008, 1016, 1020, 1071, 1120, 1143, 1190, 1224, 1260, 1270, 1360, 1428, 1440, 1524, 1530, 1632, 1680, 1778, 1785, 1904, 1905, 2016, 2032, 2040, 2142, 2159, 2286, 2380, 2448, 2520, 2540, 2667, 2720, 2856, 3048, 3060, 3360, 3556, 3570, 3808, 3810, 4064, 4080, 4284, 4318, 4445, 4572, 4760, 4896, 5040, 5080, 5334, 5355, 5712, 5715, 6096, 6120, 6477, 7112, 7140, 7620, 8001, 8160, 8568, 8636, 8890, 9144, 9520, 10080, 10160, 10668, 10710, 10795, 11424, 11430, 12192, 12240, 12954, 13335, 14224, 14280, 15113, 15240, 16002, 17136, 17272, 17780, 18288, 19040, 19431, 20320, 21336, 21420, 21590, 22860, 24480, 25908, 26670, 28448, 28560, 30226, 30480, 32004, 32385, 34272, 34544, 35560, 36576, 38862, 40005, 42672, 42840, 43180, 45339, 45720, 51816, 53340, 57120, 60452, 60960, 64008, 64770, 69088, 71120, 75565, 77724, 80010, 85344, 85680, 86360, 90678, 91440, 97155, 103632, 106680, 120904, 128016, 129540, 136017, 142240, 151130, 155448, 160020, 171360, 172720, 181356, 182880, 194310, 207264, 213360, 226695, 241808, 256032, 259080, 272034, 302260, 310896, 320040, 345440, 362712, 388620, 426720, 453390, 483616, 518160, 544068, 604520, 621792, 640080, 680085, 725424, 777240, 906780, 1036320, 1088136, 1209040, 1280160, 1360170, 1450848, 1554480, 1813560, 2176272, 2418080, 2720340, 3108960, 3627120, 4352544, 5440680, 7254240, 10881360, 21762720]

約数ペア:

[(1, 21762720), (2, 10881360), (3, 7254240), (4, 5440680), (5, 4352544), (6, 3627120), (7, 3108960), (8, 2720340), (9, 2418080), (10, 2176272), (12, 1813560), (14, 1554480), (15, 1450848), (16, 1360170), (17, 1280160), (18, 1209040), (20, 1088136), (21, 1036320), (24, 906780), (28, 777240), (30, 725424), (32, 680085), (34, 640080), (35, 621792), (36, 604520), (40, 544068), (42, 518160), (45, 483616), (48, 453390), (51, 426720), (56, 388620), (60, 362712), (63, 345440), (68, 320040), (70, 310896), (72, 302260), (80, 272034), (84, 259080), (85, 256032), (90, 241808), (96, 226695), (102, 213360), (105, 207264), (112, 194310), (119, 182880), (120, 181356), (126, 172720), (127, 171360), (136, 160020), (140, 155448), (144, 151130), (153, 142240), (160, 136017), (168, 129540), (170, 128016), (180, 120904), (204, 106680), (210, 103632), (224, 97155), (238, 91440), (240, 90678), (252, 86360), (254, 85680), (255, 85344), (272, 80010), (280, 77724), (288, 75565), (306, 71120), (315, 69088), (336, 64770), (340, 64008), (357, 60960), (360, 60452), (381, 57120), (408, 53340), (420, 51816), (476, 45720), (480, 45339), (504, 43180), (508, 42840), (510, 42672), (544, 40005), (560, 38862), (595, 36576), (612, 35560), (630, 34544), (635, 34272), (672, 32385), (680, 32004), (714, 30480), (720, 30226), (762, 28560), (765, 28448), (816, 26670), (840, 25908), (889, 24480), (952, 22860), (1008, 21590), (1016, 21420), (1020, 21336), (1071, 20320), (1120, 19431), (1143, 19040), (1190, 18288), (1224, 17780), (1260, 17272), (1270, 17136), (1360, 16002), (1428, 15240), (1440, 15113), (1524, 14280), (1530, 14224), (1632, 13335), (1680, 12954), (1778, 12240), (1785, 12192), (1904, 11430), (1905, 11424), (2016, 10795), (2032, 10710), (2040, 10668), (2142, 10160), (2159, 10080), (2286, 9520), (2380, 9144), (2448, 8890), (2520, 8636), (2540, 8568), (2667, 8160), (2720, 8001), (2856, 7620), (3048, 7140), (3060, 7112), (3360, 6477), (3556, 6120), (3570, 6096), (3808, 5715), (3810, 5712), (4064, 5355), (4080, 5334), (4284, 5080), (4318, 5040), (4445, 4896), (4572, 4760)]