128640960

素因数分解:

$2^6\times 3^4\times 5^1\times 7^1\times {\mathrm{709}}^1$

素因数の和:745

約数の個数: 280

約数和(自身を含む): 523707360

約数和(自身を除く): 395066400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 324, 336, 360, 378, 405, 420, 432, 448, 480, 504, 540, 560, 567, 576, 630, 648, 672, 709, 720, 756, 810, 840, 864, 945, 960, 1008, 1080, 1120, 1134, 1260, 1296, 1344, 1418, 1440, 1512, 1620, 1680, 1728, 1890, 2016, 2127, 2160, 2240, 2268, 2520, 2592, 2835, 2836, 2880, 3024, 3240, 3360, 3545, 3780, 4032, 4254, 4320, 4536, 4963, 5040, 5184, 5670, 5672, 6048, 6381, 6480, 6720, 7090, 7560, 8508, 8640, 9072, 9926, 10080, 10635, 11340, 11344, 12096, 12762, 12960, 14180, 14889, 15120, 17016, 18144, 19143, 19852, 20160, 21270, 22680, 22688, 24815, 25524, 25920, 28360, 29778, 30240, 31905, 34032, 36288, 38286, 39704, 42540, 44667, 45360, 45376, 49630, 51048, 56720, 57429, 59556, 60480, 63810, 68064, 74445, 76572, 79408, 85080, 89334, 90720, 95715, 99260, 102096, 113440, 114858, 119112, 127620, 134001, 136128, 148890, 153144, 158816, 170160, 178668, 181440, 191430, 198520, 204192, 223335, 226880, 229716, 238224, 255240, 268002, 287145, 297780, 306288, 317632, 340320, 357336, 382860, 397040, 402003, 408384, 446670, 459432, 476448, 510480, 536004, 574290, 595560, 612576, 670005, 680640, 714672, 765720, 794080, 804006, 893340, 918864, 952896, 1020960, 1072008, 1148580, 1191120, 1225152, 1340010, 1429344, 1531440, 1588160, 1608012, 1786680, 1837728, 2010015, 2041920, 2144016, 2297160, 2382240, 2680020, 2858688, 3062880, 3216024, 3573360, 3675456, 4020030, 4288032, 4594320, 4764480, 5360040, 6125760, 6432048, 7146720, 8040060, 8576064, 9188640, 10720080, 12864096, 14293440, 16080120, 18377280, 21440160, 25728192, 32160240, 42880320, 64320480, 128640960]

約数ペア:

[(1, 128640960), (2, 64320480), (3, 42880320), (4, 32160240), (5, 25728192), (6, 21440160), (7, 18377280), (8, 16080120), (9, 14293440), (10, 12864096), (12, 10720080), (14, 9188640), (15, 8576064), (16, 8040060), (18, 7146720), (20, 6432048), (21, 6125760), (24, 5360040), (27, 4764480), (28, 4594320), (30, 4288032), (32, 4020030), (35, 3675456), (36, 3573360), (40, 3216024), (42, 3062880), (45, 2858688), (48, 2680020), (54, 2382240), (56, 2297160), (60, 2144016), (63, 2041920), (64, 2010015), (70, 1837728), (72, 1786680), (80, 1608012), (81, 1588160), (84, 1531440), (90, 1429344), (96, 1340010), (105, 1225152), (108, 1191120), (112, 1148580), (120, 1072008), (126, 1020960), (135, 952896), (140, 918864), (144, 893340), (160, 804006), (162, 794080), (168, 765720), (180, 714672), (189, 680640), (192, 670005), (210, 612576), (216, 595560), (224, 574290), (240, 536004), (252, 510480), (270, 476448), (280, 459432), (288, 446670), (315, 408384), (320, 402003), (324, 397040), (336, 382860), (360, 357336), (378, 340320), (405, 317632), (420, 306288), (432, 297780), (448, 287145), (480, 268002), (504, 255240), (540, 238224), (560, 229716), (567, 226880), (576, 223335), (630, 204192), (648, 198520), (672, 191430), (709, 181440), (720, 178668), (756, 170160), (810, 158816), (840, 153144), (864, 148890), (945, 136128), (960, 134001), (1008, 127620), (1080, 119112), (1120, 114858), (1134, 113440), (1260, 102096), (1296, 99260), (1344, 95715), (1418, 90720), (1440, 89334), (1512, 85080), (1620, 79408), (1680, 76572), (1728, 74445), (1890, 68064), (2016, 63810), (2127, 60480), (2160, 59556), (2240, 57429), (2268, 56720), (2520, 51048), (2592, 49630), (2835, 45376), (2836, 45360), (2880, 44667), (3024, 42540), (3240, 39704), (3360, 38286), (3545, 36288), (3780, 34032), (4032, 31905), (4254, 30240), (4320, 29778), (4536, 28360), (4963, 25920), (5040, 25524), (5184, 24815), (5670, 22688), (5672, 22680), (6048, 21270), (6381, 20160), (6480, 19852), (6720, 19143), (7090, 18144), (7560, 17016), (8508, 15120), (8640, 14889), (9072, 14180), (9926, 12960), (10080, 12762), (10635, 12096), (11340, 11344)]