257005440

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:274

約数の個数: 256

約数和(自身を含む): 925344000

約数和(自身を除く): 668338560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 107, 108, 120, 128, 135, 139, 144, 160, 180, 192, 214, 216, 240, 270, 278, 288, 320, 321, 360, 384, 417, 428, 432, 480, 535, 540, 556, 576, 640, 642, 695, 720, 834, 856, 864, 960, 963, 1070, 1080, 1112, 1152, 1251, 1284, 1390, 1440, 1605, 1668, 1712, 1728, 1920, 1926, 2085, 2140, 2160, 2224, 2502, 2568, 2780, 2880, 2889, 3210, 3336, 3424, 3456, 3753, 3852, 4170, 4280, 4320, 4448, 4815, 5004, 5136, 5560, 5760, 5778, 6255, 6420, 6672, 6848, 7506, 7704, 8340, 8560, 8640, 8896, 9630, 10008, 10272, 11120, 11556, 12510, 12840, 13344, 13696, 14445, 14873, 15012, 15408, 16680, 17120, 17280, 17792, 18765, 19260, 20016, 20544, 22240, 23112, 25020, 25680, 26688, 28890, 29746, 30024, 30816, 33360, 34240, 37530, 38520, 40032, 41088, 44480, 44619, 46224, 50040, 51360, 53376, 57780, 59492, 60048, 61632, 66720, 68480, 74365, 75060, 77040, 80064, 88960, 89238, 92448, 100080, 102720, 115560, 118984, 120096, 123264, 133440, 133857, 148730, 150120, 154080, 160128, 178476, 184896, 200160, 205440, 223095, 231120, 237968, 240192, 266880, 267714, 297460, 300240, 308160, 356952, 369792, 400320, 401571, 446190, 462240, 475936, 480384, 535428, 594920, 600480, 616320, 669285, 713904, 800640, 803142, 892380, 924480, 951872, 1070856, 1189840, 1200960, 1338570, 1427808, 1606284, 1784760, 1848960, 1903744, 2007855, 2141712, 2379680, 2401920, 2677140, 2855616, 3212568, 3569520, 4015710, 4283424, 4759360, 5354280, 5711232, 6425136, 7139040, 8031420, 8566848, 9518720, 10708560, 12850272, 14278080, 16062840, 17133696, 21417120, 25700544, 28556160, 32125680, 42834240, 51401088, 64251360, 85668480, 128502720, 257005440]

約数ペア:

[(1, 257005440), (2, 128502720), (3, 85668480), (4, 64251360), (5, 51401088), (6, 42834240), (8, 32125680), (9, 28556160), (10, 25700544), (12, 21417120), (15, 17133696), (16, 16062840), (18, 14278080), (20, 12850272), (24, 10708560), (27, 9518720), (30, 8566848), (32, 8031420), (36, 7139040), (40, 6425136), (45, 5711232), (48, 5354280), (54, 4759360), (60, 4283424), (64, 4015710), (72, 3569520), (80, 3212568), (90, 2855616), (96, 2677140), (107, 2401920), (108, 2379680), (120, 2141712), (128, 2007855), (135, 1903744), (139, 1848960), (144, 1784760), (160, 1606284), (180, 1427808), (192, 1338570), (214, 1200960), (216, 1189840), (240, 1070856), (270, 951872), (278, 924480), (288, 892380), (320, 803142), (321, 800640), (360, 713904), (384, 669285), (417, 616320), (428, 600480), (432, 594920), (480, 535428), (535, 480384), (540, 475936), (556, 462240), (576, 446190), (640, 401571), (642, 400320), (695, 369792), (720, 356952), (834, 308160), (856, 300240), (864, 297460), (960, 267714), (963, 266880), (1070, 240192), (1080, 237968), (1112, 231120), (1152, 223095), (1251, 205440), (1284, 200160), (1390, 184896), (1440, 178476), (1605, 160128), (1668, 154080), (1712, 150120), (1728, 148730), (1920, 133857), (1926, 133440), (2085, 123264), (2140, 120096), (2160, 118984), (2224, 115560), (2502, 102720), (2568, 100080), (2780, 92448), (2880, 89238), (2889, 88960), (3210, 80064), (3336, 77040), (3424, 75060), (3456, 74365), (3753, 68480), (3852, 66720), (4170, 61632), (4280, 60048), (4320, 59492), (4448, 57780), (4815, 53376), (5004, 51360), (5136, 50040), (5560, 46224), (5760, 44619), (5778, 44480), (6255, 41088), (6420, 40032), (6672, 38520), (6848, 37530), (7506, 34240), (7704, 33360), (8340, 30816), (8560, 30024), (8640, 29746), (8896, 28890), (9630, 26688), (10008, 25680), (10272, 25020), (11120, 23112), (11556, 22240), (12510, 20544), (12840, 20016), (13344, 19260), (13696, 18765), (14445, 17792), (14873, 17280), (15012, 17120), (15408, 16680)]