640931760

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:561

約数の個数: 360

約数和(自身を含む): 2576794896

約数和(自身を除く): 1935863136

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 37, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 74, 80, 84, 90, 98, 105, 111, 112, 120, 126, 140, 144, 147, 148, 168, 180, 185, 196, 210, 222, 240, 245, 252, 259, 280, 294, 296, 315, 333, 336, 360, 370, 392, 420, 441, 444, 490, 491, 504, 518, 555, 560, 588, 592, 630, 666, 720, 735, 740, 777, 784, 840, 882, 888, 980, 982, 1008, 1036, 1110, 1176, 1260, 1295, 1332, 1470, 1473, 1480, 1554, 1665, 1680, 1764, 1776, 1813, 1960, 1964, 2072, 2205, 2220, 2331, 2352, 2455, 2520, 2590, 2664, 2940, 2946, 2960, 3108, 3330, 3437, 3528, 3626, 3885, 3920, 3928, 4144, 4410, 4419, 4440, 4662, 4910, 5040, 5180, 5328, 5439, 5880, 5892, 6216, 6660, 6874, 7056, 7252, 7365, 7770, 7856, 8820, 8838, 8880, 9065, 9324, 9820, 10311, 10360, 10878, 11655, 11760, 11784, 12432, 13320, 13748, 14504, 14730, 15540, 16317, 17185, 17640, 17676, 18130, 18167, 18648, 19640, 20622, 20720, 21756, 22095, 23310, 23568, 24059, 26640, 27195, 27496, 29008, 29460, 30933, 31080, 32634, 34370, 35280, 35352, 36260, 36334, 37296, 39280, 41244, 43512, 44190, 46620, 48118, 51555, 54390, 54501, 54992, 58920, 61866, 62160, 65268, 68740, 70704, 72177, 72520, 72668, 81585, 82488, 87024, 88380, 90835, 93240, 96236, 103110, 108780, 109002, 117840, 120295, 123732, 127169, 130536, 137480, 144354, 145040, 145336, 154665, 163170, 163503, 164976, 176760, 181670, 186480, 192472, 206220, 216531, 217560, 218004, 240590, 247464, 254338, 261072, 272505, 274960, 288708, 290672, 309330, 326340, 327006, 353520, 360885, 363340, 381507, 384944, 412440, 433062, 435120, 436008, 481180, 494928, 508676, 545010, 577416, 618660, 635845, 652680, 654012, 721770, 726680, 763014, 817515, 824880, 866124, 872016, 890183, 962360, 1017352, 1082655, 1090020, 1144521, 1154832, 1237320, 1271690, 1305360, 1308024, 1443540, 1453360, 1526028, 1635030, 1732248, 1780366, 1907535, 1924720, 2034704, 2165310, 2180040, 2289042, 2474640, 2543380, 2616048, 2670549, 2887080, 3052056, 3270060, 3464496, 3560732, 3815070, 4330620, 4360080, 4450915, 4578084, 5086760, 5341098, 5722605, 5774160, 6104112, 6540120, 7121464, 7630140, 8011647, 8661240, 8901830, 9156168, 10173520, 10682196, 11445210, 13080240, 13352745, 14242928, 15260280, 16023294, 17322480, 17803660, 18312336, 21364392, 22890420, 26705490, 30520560, 32046588, 35607320, 40058235, 42728784, 45780840, 53410980, 64093176, 71214640, 80116470, 91561680, 106821960, 128186352, 160232940, 213643920, 320465880, 640931760]

約数ペア:

[(1, 640931760), (2, 320465880), (3, 213643920), (4, 160232940), (5, 128186352), (6, 106821960), (7, 91561680), (8, 80116470), (9, 71214640), (10, 64093176), (12, 53410980), (14, 45780840), (15, 42728784), (16, 40058235), (18, 35607320), (20, 32046588), (21, 30520560), (24, 26705490), (28, 22890420), (30, 21364392), (35, 18312336), (36, 17803660), (37, 17322480), (40, 16023294), (42, 15260280), (45, 14242928), (48, 13352745), (49, 13080240), (56, 11445210), (60, 10682196), (63, 10173520), (70, 9156168), (72, 8901830), (74, 8661240), (80, 8011647), (84, 7630140), (90, 7121464), (98, 6540120), (105, 6104112), (111, 5774160), (112, 5722605), (120, 5341098), (126, 5086760), (140, 4578084), (144, 4450915), (147, 4360080), (148, 4330620), (168, 3815070), (180, 3560732), (185, 3464496), (196, 3270060), (210, 3052056), (222, 2887080), (240, 2670549), (245, 2616048), (252, 2543380), (259, 2474640), (280, 2289042), (294, 2180040), (296, 2165310), (315, 2034704), (333, 1924720), (336, 1907535), (360, 1780366), (370, 1732248), (392, 1635030), (420, 1526028), (441, 1453360), (444, 1443540), (490, 1308024), (491, 1305360), (504, 1271690), (518, 1237320), (555, 1154832), (560, 1144521), (588, 1090020), (592, 1082655), (630, 1017352), (666, 962360), (720, 890183), (735, 872016), (740, 866124), (777, 824880), (784, 817515), (840, 763014), (882, 726680), (888, 721770), (980, 654012), (982, 652680), (1008, 635845), (1036, 618660), (1110, 577416), (1176, 545010), (1260, 508676), (1295, 494928), (1332, 481180), (1470, 436008), (1473, 435120), (1480, 433062), (1554, 412440), (1665, 384944), (1680, 381507), (1764, 363340), (1776, 360885), (1813, 353520), (1960, 327006), (1964, 326340), (2072, 309330), (2205, 290672), (2220, 288708), (2331, 274960), (2352, 272505), (2455, 261072), (2520, 254338), (2590, 247464), (2664, 240590), (2940, 218004), (2946, 217560), (2960, 216531), (3108, 206220), (3330, 192472), (3437, 186480), (3528, 181670), (3626, 176760), (3885, 164976), (3920, 163503), (3928, 163170), (4144, 154665), (4410, 145336), (4419, 145040), (4440, 144354), (4662, 137480), (4910, 130536), (5040, 127169), (5180, 123732), (5328, 120295), (5439, 117840), (5880, 109002), (5892, 108780), (6216, 103110), (6660, 96236), (6874, 93240), (7056, 90835), (7252, 88380), (7365, 87024), (7770, 82488), (7856, 81585), (8820, 72668), (8838, 72520), (8880, 72177), (9065, 70704), (9324, 68740), (9820, 65268), (10311, 62160), (10360, 61866), (10878, 58920), (11655, 54992), (11760, 54501), (11784, 54390), (12432, 51555), (13320, 48118), (13748, 46620), (14504, 44190), (14730, 43512), (15540, 41244), (16317, 39280), (17185, 37296), (17640, 36334), (17676, 36260), (18130, 35352), (18167, 35280), (18648, 34370), (19640, 32634), (20622, 31080), (20720, 30933), (21756, 29460), (22095, 29008), (23310, 27496), (23568, 27195), (24059, 26640)]