78261120

素因数分解:

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

素因数の和:682

約数の個数: 256

約数和(自身を含む): 317260800

約数和(自身を除く): 238999680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 647, 672, 720, 756, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1294, 1344, 1440, 1512, 1680, 1728, 1890, 1920, 1941, 2016, 2160, 2240, 2520, 2588, 2688, 2880, 3024, 3235, 3360, 3456, 3780, 3882, 4032, 4320, 4480, 4529, 5040, 5176, 5760, 5823, 6048, 6470, 6720, 7560, 7764, 8064, 8640, 9058, 9705, 10080, 10352, 11646, 12096, 12940, 13440, 13587, 15120, 15528, 17280, 17469, 18116, 19410, 20160, 20704, 22645, 23292, 24192, 25880, 27174, 29115, 30240, 31056, 34938, 36232, 38820, 40320, 40761, 41408, 45290, 46584, 51760, 54348, 58230, 60480, 62112, 67935, 69876, 72464, 77640, 81522, 82816, 87345, 90580, 93168, 103520, 108696, 116460, 120960, 122283, 124224, 135870, 139752, 144928, 155280, 163044, 174690, 181160, 186336, 203805, 207040, 217392, 232920, 244566, 248448, 271740, 279504, 289856, 310560, 326088, 349380, 362320, 372672, 407610, 414080, 434784, 465840, 489132, 543480, 559008, 579712, 611415, 621120, 652176, 698760, 724640, 745344, 815220, 869568, 931680, 978264, 1086960, 1118016, 1222830, 1242240, 1304352, 1397520, 1449280, 1630440, 1739136, 1863360, 1956528, 2173920, 2236032, 2445660, 2608704, 2795040, 2898560, 3260880, 3726720, 3913056, 4347840, 4891320, 5217408, 5590080, 6521760, 7826112, 8695680, 9782640, 11180160, 13043520, 15652224, 19565280, 26087040, 39130560, 78261120]

約数ペア:

[(1, 78261120), (2, 39130560), (3, 26087040), (4, 19565280), (5, 15652224), (6, 13043520), (7, 11180160), (8, 9782640), (9, 8695680), (10, 7826112), (12, 6521760), (14, 5590080), (15, 5217408), (16, 4891320), (18, 4347840), (20, 3913056), (21, 3726720), (24, 3260880), (27, 2898560), (28, 2795040), (30, 2608704), (32, 2445660), (35, 2236032), (36, 2173920), (40, 1956528), (42, 1863360), (45, 1739136), (48, 1630440), (54, 1449280), (56, 1397520), (60, 1304352), (63, 1242240), (64, 1222830), (70, 1118016), (72, 1086960), (80, 978264), (84, 931680), (90, 869568), (96, 815220), (105, 745344), (108, 724640), (112, 698760), (120, 652176), (126, 621120), (128, 611415), (135, 579712), (140, 559008), (144, 543480), (160, 489132), (168, 465840), (180, 434784), (189, 414080), (192, 407610), (210, 372672), (216, 362320), (224, 349380), (240, 326088), (252, 310560), (270, 289856), (280, 279504), (288, 271740), (315, 248448), (320, 244566), (336, 232920), (360, 217392), (378, 207040), (384, 203805), (420, 186336), (432, 181160), (448, 174690), (480, 163044), (504, 155280), (540, 144928), (560, 139752), (576, 135870), (630, 124224), (640, 122283), (647, 120960), (672, 116460), (720, 108696), (756, 103520), (840, 93168), (864, 90580), (896, 87345), (945, 82816), (960, 81522), (1008, 77640), (1080, 72464), (1120, 69876), (1152, 67935), (1260, 62112), (1294, 60480), (1344, 58230), (1440, 54348), (1512, 51760), (1680, 46584), (1728, 45290), (1890, 41408), (1920, 40761), (1941, 40320), (2016, 38820), (2160, 36232), (2240, 34938), (2520, 31056), (2588, 30240), (2688, 29115), (2880, 27174), (3024, 25880), (3235, 24192), (3360, 23292), (3456, 22645), (3780, 20704), (3882, 20160), (4032, 19410), (4320, 18116), (4480, 17469), (4529, 17280), (5040, 15528), (5176, 15120), (5760, 13587), (5823, 13440), (6048, 12940), (6470, 12096), (6720, 11646), (7560, 10352), (7764, 10080), (8064, 9705), (8640, 9058)]