639838080

素因数分解:

$2^7\times 3^2\times 5^1\times 7^2\times {\mathrm{2267}}^1$

素因数の和:2306

約数の個数: 288

約数和(自身を含む): 2571299640

約数和(自身を除く): 1931461560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 128, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 320, 336, 360, 384, 392, 420, 441, 448, 480, 490, 504, 560, 576, 588, 630, 640, 672, 720, 735, 784, 840, 882, 896, 960, 980, 1008, 1120, 1152, 1176, 1260, 1344, 1440, 1470, 1568, 1680, 1764, 1920, 1960, 2016, 2205, 2240, 2267, 2352, 2520, 2688, 2880, 2940, 3136, 3360, 3528, 3920, 4032, 4410, 4480, 4534, 4704, 5040, 5760, 5880, 6272, 6720, 6801, 7056, 7840, 8064, 8820, 9068, 9408, 10080, 11335, 11760, 13440, 13602, 14112, 15680, 15869, 17640, 18136, 18816, 20160, 20403, 22670, 23520, 27204, 28224, 31360, 31738, 34005, 35280, 36272, 40320, 40806, 45340, 47040, 47607, 54408, 56448, 63476, 68010, 70560, 72544, 79345, 81612, 90680, 94080, 95214, 102015, 108816, 111083, 126952, 136020, 141120, 142821, 145088, 158690, 163224, 181360, 190428, 204030, 217632, 222166, 238035, 253904, 272040, 282240, 285642, 290176, 317380, 326448, 333249, 362720, 380856, 408060, 435264, 444332, 476070, 507808, 544080, 555415, 571284, 634760, 652896, 666498, 714105, 725440, 761712, 816120, 870528, 888664, 952140, 999747, 1015616, 1088160, 1110830, 1142568, 1269520, 1305792, 1332996, 1428210, 1450880, 1523424, 1632240, 1666245, 1777328, 1904280, 1999494, 2031232, 2176320, 2221660, 2285136, 2539040, 2611584, 2665992, 2856420, 3046848, 3264480, 3332490, 3554656, 3808560, 3998988, 4352640, 4443320, 4570272, 4998735, 5078080, 5331984, 5712840, 6093696, 6528960, 6664980, 7109312, 7617120, 7997976, 8886640, 9140544, 9997470, 10156160, 10663968, 11425680, 13057920, 13329960, 14218624, 15234240, 15995952, 17773280, 18281088, 19994940, 21327936, 22851360, 26659920, 30468480, 31991904, 35546560, 39989880, 42655872, 45702720, 53319840, 63983808, 71093120, 79979760, 91405440, 106639680, 127967616, 159959520, 213279360, 319919040, 639838080]

約数ペア:

[(1, 639838080), (2, 319919040), (3, 213279360), (4, 159959520), (5, 127967616), (6, 106639680), (7, 91405440), (8, 79979760), (9, 71093120), (10, 63983808), (12, 53319840), (14, 45702720), (15, 42655872), (16, 39989880), (18, 35546560), (20, 31991904), (21, 30468480), (24, 26659920), (28, 22851360), (30, 21327936), (32, 19994940), (35, 18281088), (36, 17773280), (40, 15995952), (42, 15234240), (45, 14218624), (48, 13329960), (49, 13057920), (56, 11425680), (60, 10663968), (63, 10156160), (64, 9997470), (70, 9140544), (72, 8886640), (80, 7997976), (84, 7617120), (90, 7109312), (96, 6664980), (98, 6528960), (105, 6093696), (112, 5712840), (120, 5331984), (126, 5078080), (128, 4998735), (140, 4570272), (144, 4443320), (147, 4352640), (160, 3998988), (168, 3808560), (180, 3554656), (192, 3332490), (196, 3264480), (210, 3046848), (224, 2856420), (240, 2665992), (245, 2611584), (252, 2539040), (280, 2285136), (288, 2221660), (294, 2176320), (315, 2031232), (320, 1999494), (336, 1904280), (360, 1777328), (384, 1666245), (392, 1632240), (420, 1523424), (441, 1450880), (448, 1428210), (480, 1332996), (490, 1305792), (504, 1269520), (560, 1142568), (576, 1110830), (588, 1088160), (630, 1015616), (640, 999747), (672, 952140), (720, 888664), (735, 870528), (784, 816120), (840, 761712), (882, 725440), (896, 714105), (960, 666498), (980, 652896), (1008, 634760), (1120, 571284), (1152, 555415), (1176, 544080), (1260, 507808), (1344, 476070), (1440, 444332), (1470, 435264), (1568, 408060), (1680, 380856), (1764, 362720), (1920, 333249), (1960, 326448), (2016, 317380), (2205, 290176), (2240, 285642), (2267, 282240), (2352, 272040), (2520, 253904), (2688, 238035), (2880, 222166), (2940, 217632), (3136, 204030), (3360, 190428), (3528, 181360), (3920, 163224), (4032, 158690), (4410, 145088), (4480, 142821), (4534, 141120), (4704, 136020), (5040, 126952), (5760, 111083), (5880, 108816), (6272, 102015), (6720, 95214), (6801, 94080), (7056, 90680), (7840, 81612), (8064, 79345), (8820, 72544), (9068, 70560), (9408, 68010), (10080, 63476), (11335, 56448), (11760, 54408), (13440, 47607), (13602, 47040), (14112, 45340), (15680, 40806), (15869, 40320), (17640, 36272), (18136, 35280), (18816, 34005), (20160, 31738), (20403, 31360), (22670, 28224), (23520, 27204)]