261280080

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:747

約数の個数: 200

約数和(自身を含む): 923736264

約数和(自身を除く): 662456184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 61, 72, 80, 81, 90, 108, 120, 122, 135, 144, 162, 180, 183, 216, 240, 244, 270, 305, 324, 360, 366, 405, 432, 488, 540, 549, 610, 648, 661, 720, 732, 810, 915, 976, 1080, 1098, 1220, 1296, 1322, 1464, 1620, 1647, 1830, 1983, 2160, 2196, 2440, 2644, 2745, 2928, 3240, 3294, 3305, 3660, 3966, 4392, 4880, 4941, 5288, 5490, 5949, 6480, 6588, 6610, 7320, 7932, 8235, 8784, 9882, 9915, 10576, 10980, 11898, 13176, 13220, 14640, 15864, 16470, 17847, 19764, 19830, 21960, 23796, 24705, 26352, 26440, 29745, 31728, 32940, 35694, 39528, 39660, 40321, 43920, 47592, 49410, 52880, 53541, 59490, 65880, 71388, 79056, 79320, 80642, 89235, 95184, 98820, 107082, 118980, 120963, 131760, 142776, 158640, 161284, 178470, 197640, 201605, 214164, 237960, 241926, 267705, 285552, 322568, 356940, 362889, 395280, 403210, 428328, 475920, 483852, 535410, 604815, 645136, 713880, 725778, 806420, 856656, 967704, 1070820, 1088667, 1209630, 1427760, 1451556, 1612840, 1814445, 1935408, 2141640, 2177334, 2419260, 2903112, 3225680, 3266001, 3628890, 4283280, 4354668, 4838520, 5443335, 5806224, 6532002, 7257780, 8709336, 9677040, 10886670, 13064004, 14515560, 16330005, 17418672, 21773340, 26128008, 29031120, 32660010, 43546680, 52256016, 65320020, 87093360, 130640040, 261280080]

約数ペア:

[(1, 261280080), (2, 130640040), (3, 87093360), (4, 65320020), (5, 52256016), (6, 43546680), (8, 32660010), (9, 29031120), (10, 26128008), (12, 21773340), (15, 17418672), (16, 16330005), (18, 14515560), (20, 13064004), (24, 10886670), (27, 9677040), (30, 8709336), (36, 7257780), (40, 6532002), (45, 5806224), (48, 5443335), (54, 4838520), (60, 4354668), (61, 4283280), (72, 3628890), (80, 3266001), (81, 3225680), (90, 2903112), (108, 2419260), (120, 2177334), (122, 2141640), (135, 1935408), (144, 1814445), (162, 1612840), (180, 1451556), (183, 1427760), (216, 1209630), (240, 1088667), (244, 1070820), (270, 967704), (305, 856656), (324, 806420), (360, 725778), (366, 713880), (405, 645136), (432, 604815), (488, 535410), (540, 483852), (549, 475920), (610, 428328), (648, 403210), (661, 395280), (720, 362889), (732, 356940), (810, 322568), (915, 285552), (976, 267705), (1080, 241926), (1098, 237960), (1220, 214164), (1296, 201605), (1322, 197640), (1464, 178470), (1620, 161284), (1647, 158640), (1830, 142776), (1983, 131760), (2160, 120963), (2196, 118980), (2440, 107082), (2644, 98820), (2745, 95184), (2928, 89235), (3240, 80642), (3294, 79320), (3305, 79056), (3660, 71388), (3966, 65880), (4392, 59490), (4880, 53541), (4941, 52880), (5288, 49410), (5490, 47592), (5949, 43920), (6480, 40321), (6588, 39660), (6610, 39528), (7320, 35694), (7932, 32940), (8235, 31728), (8784, 29745), (9882, 26440), (9915, 26352), (10576, 24705), (10980, 23796), (11898, 21960), (13176, 19830), (13220, 19764), (14640, 17847), (15864, 16470)]