280435680

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:718

約数の個数: 288

約数和(自身を含む): 1120863744

約数和(自身を除く): 840428064

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, 43, 45, 48, 56, 60, 63, 70, 72, 80, 84, 86, 90, 96, 105, 112, 120, 126, 129, 140, 144, 160, 168, 172, 180, 210, 215, 224, 240, 252, 258, 280, 288, 301, 315, 336, 344, 360, 387, 420, 430, 480, 504, 516, 560, 602, 630, 645, 647, 672, 688, 720, 774, 840, 860, 903, 1008, 1032, 1120, 1204, 1260, 1290, 1294, 1376, 1440, 1505, 1548, 1680, 1720, 1806, 1935, 1941, 2016, 2064, 2408, 2520, 2580, 2588, 2709, 3010, 3096, 3235, 3360, 3440, 3612, 3870, 3882, 4128, 4515, 4529, 4816, 5040, 5160, 5176, 5418, 5823, 6020, 6192, 6470, 6880, 7224, 7740, 7764, 9030, 9058, 9632, 9705, 10080, 10320, 10352, 10836, 11646, 12040, 12384, 12940, 13545, 13587, 14448, 15480, 15528, 18060, 18116, 19410, 20640, 20704, 21672, 22645, 23292, 24080, 25880, 27090, 27174, 27821, 28896, 29115, 30960, 31056, 36120, 36232, 38820, 40761, 43344, 45290, 46584, 48160, 51760, 54180, 54348, 55642, 58230, 61920, 62112, 67935, 72240, 72464, 77640, 81522, 83463, 86688, 90580, 93168, 103520, 108360, 108696, 111284, 116460, 135870, 139105, 144480, 144928, 155280, 163044, 166926, 181160, 186336, 194747, 203805, 216720, 217392, 222568, 232920, 250389, 271740, 278210, 310560, 326088, 333852, 362320, 389494, 407610, 417315, 433440, 434784, 445136, 465840, 500778, 543480, 556420, 584241, 652176, 667704, 724640, 778988, 815220, 834630, 890272, 931680, 973735, 1001556, 1086960, 1112840, 1168482, 1251945, 1304352, 1335408, 1557976, 1630440, 1669260, 1752723, 1947470, 2003112, 2173920, 2225680, 2336964, 2503890, 2670816, 2921205, 3115952, 3260880, 3338520, 3505446, 3894940, 4006224, 4451360, 4673928, 5007780, 5842410, 6231904, 6521760, 6677040, 7010892, 7789880, 8012448, 8763615, 9347856, 10015560, 11684820, 13354080, 14021784, 15579760, 17527230, 18695712, 20031120, 23369640, 28043568, 31159520, 35054460, 40062240, 46739280, 56087136, 70108920, 93478560, 140217840, 280435680]

約数ペア:

[(1, 280435680), (2, 140217840), (3, 93478560), (4, 70108920), (5, 56087136), (6, 46739280), (7, 40062240), (8, 35054460), (9, 31159520), (10, 28043568), (12, 23369640), (14, 20031120), (15, 18695712), (16, 17527230), (18, 15579760), (20, 14021784), (21, 13354080), (24, 11684820), (28, 10015560), (30, 9347856), (32, 8763615), (35, 8012448), (36, 7789880), (40, 7010892), (42, 6677040), (43, 6521760), (45, 6231904), (48, 5842410), (56, 5007780), (60, 4673928), (63, 4451360), (70, 4006224), (72, 3894940), (80, 3505446), (84, 3338520), (86, 3260880), (90, 3115952), (96, 2921205), (105, 2670816), (112, 2503890), (120, 2336964), (126, 2225680), (129, 2173920), (140, 2003112), (144, 1947470), (160, 1752723), (168, 1669260), (172, 1630440), (180, 1557976), (210, 1335408), (215, 1304352), (224, 1251945), (240, 1168482), (252, 1112840), (258, 1086960), (280, 1001556), (288, 973735), (301, 931680), (315, 890272), (336, 834630), (344, 815220), (360, 778988), (387, 724640), (420, 667704), (430, 652176), (480, 584241), (504, 556420), (516, 543480), (560, 500778), (602, 465840), (630, 445136), (645, 434784), (647, 433440), (672, 417315), (688, 407610), (720, 389494), (774, 362320), (840, 333852), (860, 326088), (903, 310560), (1008, 278210), (1032, 271740), (1120, 250389), (1204, 232920), (1260, 222568), (1290, 217392), (1294, 216720), (1376, 203805), (1440, 194747), (1505, 186336), (1548, 181160), (1680, 166926), (1720, 163044), (1806, 155280), (1935, 144928), (1941, 144480), (2016, 139105), (2064, 135870), (2408, 116460), (2520, 111284), (2580, 108696), (2588, 108360), (2709, 103520), (3010, 93168), (3096, 90580), (3235, 86688), (3360, 83463), (3440, 81522), (3612, 77640), (3870, 72464), (3882, 72240), (4128, 67935), (4515, 62112), (4529, 61920), (4816, 58230), (5040, 55642), (5160, 54348), (5176, 54180), (5418, 51760), (5823, 48160), (6020, 46584), (6192, 45290), (6470, 43344), (6880, 40761), (7224, 38820), (7740, 36232), (7764, 36120), (9030, 31056), (9058, 30960), (9632, 29115), (9705, 28896), (10080, 27821), (10320, 27174), (10352, 27090), (10836, 25880), (11646, 24080), (12040, 23292), (12384, 22645), (12940, 21672), (13545, 20704), (13587, 20640), (14448, 19410), (15480, 18116), (15528, 18060)]