638694720

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:671

約数の個数: 280

約数和(自身を含む): 2331235368

約数和(自身を除く): 1692540648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 41, 45, 48, 54, 60, 64, 72, 80, 81, 82, 90, 96, 108, 120, 123, 135, 144, 160, 162, 164, 180, 192, 205, 216, 240, 246, 270, 288, 320, 324, 328, 360, 369, 405, 410, 432, 480, 492, 540, 576, 601, 615, 648, 656, 720, 738, 810, 820, 864, 960, 984, 1080, 1107, 1202, 1230, 1296, 1312, 1440, 1476, 1620, 1640, 1728, 1803, 1845, 1968, 2160, 2214, 2404, 2460, 2592, 2624, 2880, 2952, 3005, 3240, 3280, 3321, 3606, 3690, 3936, 4320, 4428, 4808, 4920, 5184, 5409, 5535, 5904, 6010, 6480, 6560, 6642, 7212, 7380, 7872, 8640, 8856, 9015, 9616, 9840, 10818, 11070, 11808, 12020, 12960, 13120, 13284, 14424, 14760, 16227, 16605, 17712, 18030, 19232, 19680, 21636, 22140, 23616, 24040, 24641, 25920, 26568, 27045, 28848, 29520, 32454, 33210, 35424, 36060, 38464, 39360, 43272, 44280, 48080, 48681, 49282, 53136, 54090, 57696, 59040, 64908, 66420, 70848, 72120, 73923, 81135, 86544, 88560, 96160, 97362, 98564, 106272, 108180, 115392, 118080, 123205, 129816, 132840, 144240, 147846, 162270, 173088, 177120, 192320, 194724, 197128, 212544, 216360, 221769, 243405, 246410, 259632, 265680, 288480, 295692, 324540, 346176, 354240, 369615, 389448, 394256, 432720, 443538, 486810, 492820, 519264, 531360, 576960, 591384, 649080, 665307, 739230, 778896, 788512, 865440, 887076, 973620, 985640, 1038528, 1062720, 1108845, 1182768, 1298160, 1330614, 1478460, 1557792, 1577024, 1730880, 1774152, 1947240, 1971280, 1995921, 2217690, 2365536, 2596320, 2661228, 2956920, 3115584, 3326535, 3548304, 3894480, 3942560, 3991842, 4435380, 4731072, 5192640, 5322456, 5913840, 6653070, 7096608, 7788960, 7885120, 7983684, 8870760, 9979605, 10644912, 11827680, 13306140, 14193216, 15577920, 15967368, 17741520, 19959210, 21289824, 23655360, 26612280, 31934736, 35483040, 39918420, 42579648, 53224560, 63869472, 70966080, 79836840, 106449120, 127738944, 159673680, 212898240, 319347360, 638694720]

約数ペア:

[(1, 638694720), (2, 319347360), (3, 212898240), (4, 159673680), (5, 127738944), (6, 106449120), (8, 79836840), (9, 70966080), (10, 63869472), (12, 53224560), (15, 42579648), (16, 39918420), (18, 35483040), (20, 31934736), (24, 26612280), (27, 23655360), (30, 21289824), (32, 19959210), (36, 17741520), (40, 15967368), (41, 15577920), (45, 14193216), (48, 13306140), (54, 11827680), (60, 10644912), (64, 9979605), (72, 8870760), (80, 7983684), (81, 7885120), (82, 7788960), (90, 7096608), (96, 6653070), (108, 5913840), (120, 5322456), (123, 5192640), (135, 4731072), (144, 4435380), (160, 3991842), (162, 3942560), (164, 3894480), (180, 3548304), (192, 3326535), (205, 3115584), (216, 2956920), (240, 2661228), (246, 2596320), (270, 2365536), (288, 2217690), (320, 1995921), (324, 1971280), (328, 1947240), (360, 1774152), (369, 1730880), (405, 1577024), (410, 1557792), (432, 1478460), (480, 1330614), (492, 1298160), (540, 1182768), (576, 1108845), (601, 1062720), (615, 1038528), (648, 985640), (656, 973620), (720, 887076), (738, 865440), (810, 788512), (820, 778896), (864, 739230), (960, 665307), (984, 649080), (1080, 591384), (1107, 576960), (1202, 531360), (1230, 519264), (1296, 492820), (1312, 486810), (1440, 443538), (1476, 432720), (1620, 394256), (1640, 389448), (1728, 369615), (1803, 354240), (1845, 346176), (1968, 324540), (2160, 295692), (2214, 288480), (2404, 265680), (2460, 259632), (2592, 246410), (2624, 243405), (2880, 221769), (2952, 216360), (3005, 212544), (3240, 197128), (3280, 194724), (3321, 192320), (3606, 177120), (3690, 173088), (3936, 162270), (4320, 147846), (4428, 144240), (4808, 132840), (4920, 129816), (5184, 123205), (5409, 118080), (5535, 115392), (5904, 108180), (6010, 106272), (6480, 98564), (6560, 97362), (6642, 96160), (7212, 88560), (7380, 86544), (7872, 81135), (8640, 73923), (8856, 72120), (9015, 70848), (9616, 66420), (9840, 64908), (10818, 59040), (11070, 57696), (11808, 54090), (12020, 53136), (12960, 49282), (13120, 48681), (13284, 48080), (14424, 44280), (14760, 43272), (16227, 39360), (16605, 38464), (17712, 36060), (18030, 35424), (19232, 33210), (19680, 32454), (21636, 29520), (22140, 28848), (23616, 27045), (24040, 26568), (24641, 25920)]