256520880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{661}}^1$

素因数の和:705

約数の個数: 360

約数和(自身を含む): 1094889744

約数和(自身を除く): 838368864

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 49, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 98, 99, 105, 110, 112, 120, 126, 132, 140, 144, 147, 154, 165, 168, 176, 180, 196, 198, 210, 220, 231, 240, 245, 252, 264, 280, 294, 308, 315, 330, 336, 360, 385, 392, 396, 420, 440, 441, 462, 490, 495, 504, 528, 539, 560, 588, 616, 630, 660, 661, 693, 720, 735, 770, 784, 792, 840, 880, 882, 924, 980, 990, 1008, 1078, 1155, 1176, 1232, 1260, 1320, 1322, 1386, 1470, 1540, 1584, 1617, 1680, 1764, 1848, 1960, 1980, 1983, 2156, 2205, 2310, 2352, 2520, 2640, 2644, 2695, 2772, 2940, 3080, 3234, 3305, 3465, 3528, 3696, 3920, 3960, 3966, 4312, 4410, 4620, 4627, 4851, 5040, 5288, 5390, 5544, 5880, 5949, 6160, 6468, 6610, 6930, 7056, 7271, 7920, 7932, 8085, 8624, 8820, 9240, 9254, 9702, 9915, 10576, 10780, 11088, 11760, 11898, 12936, 13220, 13860, 13881, 14542, 15864, 16170, 17640, 18480, 18508, 19404, 19830, 21560, 21813, 23135, 23796, 24255, 25872, 26440, 27720, 27762, 29084, 29745, 31728, 32340, 32389, 35280, 36355, 37016, 38808, 39660, 41643, 43120, 43626, 46270, 47592, 48510, 50897, 52880, 55440, 55524, 58168, 59490, 64680, 64778, 65439, 69405, 72710, 74032, 77616, 79320, 83286, 87252, 92540, 95184, 97020, 97167, 101794, 109065, 111048, 116336, 118980, 129360, 129556, 130878, 138810, 145420, 152691, 158640, 161945, 166572, 174504, 185080, 194040, 194334, 203588, 208215, 218130, 222096, 237960, 254485, 259112, 261756, 277620, 290840, 291501, 305382, 323890, 327195, 333144, 349008, 356279, 370160, 388080, 388668, 407176, 416430, 436260, 458073, 475920, 485835, 508970, 518224, 523512, 555240, 581680, 583002, 610764, 647780, 654390, 666288, 712558, 763455, 777336, 814352, 832860, 872520, 916146, 971670, 1017940, 1047024, 1068837, 1110480, 1166004, 1221528, 1295560, 1308780, 1425116, 1457505, 1526910, 1554672, 1665720, 1745040, 1781395, 1832292, 1943340, 2035880, 2137674, 2290365, 2332008, 2443056, 2591120, 2617560, 2850232, 2915010, 3053820, 3206511, 3331440, 3562790, 3664584, 3886680, 4071760, 4275348, 4580730, 4664016, 5235120, 5344185, 5700464, 5830020, 6107640, 6413022, 7125580, 7329168, 7773360, 8550696, 9161460, 10688370, 11660040, 12215280, 12826044, 14251160, 16032555, 17101392, 18322920, 21376740, 23320080, 25652088, 28502320, 32065110, 36645840, 42753480, 51304176, 64130220, 85506960, 128260440, 256520880]

約数ペア:

[(1, 256520880), (2, 128260440), (3, 85506960), (4, 64130220), (5, 51304176), (6, 42753480), (7, 36645840), (8, 32065110), (9, 28502320), (10, 25652088), (11, 23320080), (12, 21376740), (14, 18322920), (15, 17101392), (16, 16032555), (18, 14251160), (20, 12826044), (21, 12215280), (22, 11660040), (24, 10688370), (28, 9161460), (30, 8550696), (33, 7773360), (35, 7329168), (36, 7125580), (40, 6413022), (42, 6107640), (44, 5830020), (45, 5700464), (48, 5344185), (49, 5235120), (55, 4664016), (56, 4580730), (60, 4275348), (63, 4071760), (66, 3886680), (70, 3664584), (72, 3562790), (77, 3331440), (80, 3206511), (84, 3053820), (88, 2915010), (90, 2850232), (98, 2617560), (99, 2591120), (105, 2443056), (110, 2332008), (112, 2290365), (120, 2137674), (126, 2035880), (132, 1943340), (140, 1832292), (144, 1781395), (147, 1745040), (154, 1665720), (165, 1554672), (168, 1526910), (176, 1457505), (180, 1425116), (196, 1308780), (198, 1295560), (210, 1221528), (220, 1166004), (231, 1110480), (240, 1068837), (245, 1047024), (252, 1017940), (264, 971670), (280, 916146), (294, 872520), (308, 832860), (315, 814352), (330, 777336), (336, 763455), (360, 712558), (385, 666288), (392, 654390), (396, 647780), (420, 610764), (440, 583002), (441, 581680), (462, 555240), (490, 523512), (495, 518224), (504, 508970), (528, 485835), (539, 475920), (560, 458073), (588, 436260), (616, 416430), (630, 407176), (660, 388668), (661, 388080), (693, 370160), (720, 356279), (735, 349008), (770, 333144), (784, 327195), (792, 323890), (840, 305382), (880, 291501), (882, 290840), (924, 277620), (980, 261756), (990, 259112), (1008, 254485), (1078, 237960), (1155, 222096), (1176, 218130), (1232, 208215), (1260, 203588), (1320, 194334), (1322, 194040), (1386, 185080), (1470, 174504), (1540, 166572), (1584, 161945), (1617, 158640), (1680, 152691), (1764, 145420), (1848, 138810), (1960, 130878), (1980, 129556), (1983, 129360), (2156, 118980), (2205, 116336), (2310, 111048), (2352, 109065), (2520, 101794), (2640, 97167), (2644, 97020), (2695, 95184), (2772, 92540), (2940, 87252), (3080, 83286), (3234, 79320), (3305, 77616), (3465, 74032), (3528, 72710), (3696, 69405), (3920, 65439), (3960, 64778), (3966, 64680), (4312, 59490), (4410, 58168), (4620, 55524), (4627, 55440), (4851, 52880), (5040, 50897), (5288, 48510), (5390, 47592), (5544, 46270), (5880, 43626), (5949, 43120), (6160, 41643), (6468, 39660), (6610, 38808), (6930, 37016), (7056, 36355), (7271, 35280), (7920, 32389), (7932, 32340), (8085, 31728), (8624, 29745), (8820, 29084), (9240, 27762), (9254, 27720), (9702, 26440), (9915, 25872), (10576, 24255), (10780, 23796), (11088, 23135), (11760, 21813), (11898, 21560), (12936, 19830), (13220, 19404), (13860, 18508), (13881, 18480), (14542, 17640), (15864, 16170)]