208640040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:209

約数の個数: 256

約数和(自身を含む): 755136000

約数和(自身を除く): 546495960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 49, 56, 60, 70, 74, 84, 98, 105, 111, 120, 137, 140, 147, 148, 168, 185, 196, 210, 222, 245, 259, 274, 280, 294, 296, 343, 370, 392, 411, 420, 444, 490, 518, 548, 555, 588, 685, 686, 735, 740, 777, 822, 840, 888, 959, 980, 1029, 1036, 1096, 1110, 1176, 1295, 1370, 1372, 1470, 1480, 1554, 1644, 1715, 1813, 1918, 1960, 2055, 2058, 2072, 2220, 2590, 2740, 2744, 2877, 2940, 3108, 3288, 3430, 3626, 3836, 3885, 4110, 4116, 4440, 4795, 5069, 5145, 5180, 5439, 5480, 5754, 5880, 6216, 6713, 6860, 7252, 7672, 7770, 8220, 8232, 9065, 9590, 10138, 10290, 10360, 10878, 11508, 12691, 13426, 13720, 14385, 14504, 15207, 15540, 16440, 18130, 19180, 20139, 20276, 20580, 21756, 23016, 25345, 25382, 26852, 27195, 28770, 30414, 31080, 33565, 35483, 36260, 38073, 38360, 40278, 40552, 41160, 43512, 46991, 50690, 50764, 53704, 54390, 57540, 60828, 63455, 67130, 70966, 72520, 76035, 76146, 80556, 93982, 100695, 101380, 101528, 106449, 108780, 115080, 121656, 126910, 134260, 140973, 141932, 152070, 152292, 161112, 177415, 187964, 190365, 201390, 202760, 212898, 217560, 234955, 248381, 253820, 268520, 281946, 283864, 304140, 304584, 354830, 375928, 380730, 402780, 425796, 469910, 496762, 507640, 532245, 563892, 608280, 704865, 709660, 745143, 761460, 805560, 851592, 939820, 993524, 1064490, 1127784, 1241905, 1409730, 1419320, 1490286, 1522920, 1738667, 1879640, 1987048, 2128980, 2483810, 2819460, 2980572, 3477334, 3725715, 4257960, 4967620, 5216001, 5638920, 5961144, 6954668, 7451430, 8693335, 9935240, 10432002, 13909336, 14902860, 17386670, 20864004, 26080005, 29805720, 34773340, 41728008, 52160010, 69546680, 104320020, 208640040]

約数ペア:

[(1, 208640040), (2, 104320020), (3, 69546680), (4, 52160010), (5, 41728008), (6, 34773340), (7, 29805720), (8, 26080005), (10, 20864004), (12, 17386670), (14, 14902860), (15, 13909336), (20, 10432002), (21, 9935240), (24, 8693335), (28, 7451430), (30, 6954668), (35, 5961144), (37, 5638920), (40, 5216001), (42, 4967620), (49, 4257960), (56, 3725715), (60, 3477334), (70, 2980572), (74, 2819460), (84, 2483810), (98, 2128980), (105, 1987048), (111, 1879640), (120, 1738667), (137, 1522920), (140, 1490286), (147, 1419320), (148, 1409730), (168, 1241905), (185, 1127784), (196, 1064490), (210, 993524), (222, 939820), (245, 851592), (259, 805560), (274, 761460), (280, 745143), (294, 709660), (296, 704865), (343, 608280), (370, 563892), (392, 532245), (411, 507640), (420, 496762), (444, 469910), (490, 425796), (518, 402780), (548, 380730), (555, 375928), (588, 354830), (685, 304584), (686, 304140), (735, 283864), (740, 281946), (777, 268520), (822, 253820), (840, 248381), (888, 234955), (959, 217560), (980, 212898), (1029, 202760), (1036, 201390), (1096, 190365), (1110, 187964), (1176, 177415), (1295, 161112), (1370, 152292), (1372, 152070), (1470, 141932), (1480, 140973), (1554, 134260), (1644, 126910), (1715, 121656), (1813, 115080), (1918, 108780), (1960, 106449), (2055, 101528), (2058, 101380), (2072, 100695), (2220, 93982), (2590, 80556), (2740, 76146), (2744, 76035), (2877, 72520), (2940, 70966), (3108, 67130), (3288, 63455), (3430, 60828), (3626, 57540), (3836, 54390), (3885, 53704), (4110, 50764), (4116, 50690), (4440, 46991), (4795, 43512), (5069, 41160), (5145, 40552), (5180, 40278), (5439, 38360), (5480, 38073), (5754, 36260), (5880, 35483), (6216, 33565), (6713, 31080), (6860, 30414), (7252, 28770), (7672, 27195), (7770, 26852), (8220, 25382), (8232, 25345), (9065, 23016), (9590, 21756), (10138, 20580), (10290, 20276), (10360, 20139), (10878, 19180), (11508, 18130), (12691, 16440), (13426, 15540), (13720, 15207), (14385, 14504)]