278317440

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:465

約数の個数: 192

約数和(自身を含む): 969836400

約数和(自身を除く): 691518960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 211, 229, 240, 288, 320, 360, 384, 422, 458, 480, 576, 633, 640, 687, 720, 844, 916, 960, 1055, 1145, 1152, 1266, 1374, 1440, 1688, 1832, 1899, 1920, 2061, 2110, 2290, 2532, 2748, 2880, 3165, 3376, 3435, 3664, 3798, 4122, 4220, 4580, 5064, 5496, 5760, 6330, 6752, 6870, 7328, 7596, 8244, 8440, 9160, 9495, 10128, 10305, 10992, 12660, 13504, 13740, 14656, 15192, 16488, 16880, 18320, 18990, 20256, 20610, 21984, 25320, 27008, 27480, 29312, 30384, 32976, 33760, 36640, 37980, 40512, 41220, 43968, 48319, 50640, 54960, 60768, 65952, 67520, 73280, 75960, 81024, 82440, 87936, 96638, 101280, 109920, 121536, 131904, 135040, 144957, 146560, 151920, 164880, 193276, 202560, 219840, 241595, 243072, 263808, 289914, 303840, 329760, 386552, 405120, 434871, 439680, 483190, 579828, 607680, 659520, 724785, 773104, 869742, 966380, 1159656, 1215360, 1319040, 1449570, 1546208, 1739484, 1932760, 2174355, 2319312, 2899140, 3092416, 3478968, 3865520, 4348710, 4638624, 5798280, 6184832, 6957936, 7731040, 8697420, 9277248, 11596560, 13915872, 15462080, 17394840, 18554496, 23193120, 27831744, 30924160, 34789680, 46386240, 55663488, 69579360, 92772480, 139158720, 278317440]

約数ペア:

[(1, 278317440), (2, 139158720), (3, 92772480), (4, 69579360), (5, 55663488), (6, 46386240), (8, 34789680), (9, 30924160), (10, 27831744), (12, 23193120), (15, 18554496), (16, 17394840), (18, 15462080), (20, 13915872), (24, 11596560), (30, 9277248), (32, 8697420), (36, 7731040), (40, 6957936), (45, 6184832), (48, 5798280), (60, 4638624), (64, 4348710), (72, 3865520), (80, 3478968), (90, 3092416), (96, 2899140), (120, 2319312), (128, 2174355), (144, 1932760), (160, 1739484), (180, 1546208), (192, 1449570), (211, 1319040), (229, 1215360), (240, 1159656), (288, 966380), (320, 869742), (360, 773104), (384, 724785), (422, 659520), (458, 607680), (480, 579828), (576, 483190), (633, 439680), (640, 434871), (687, 405120), (720, 386552), (844, 329760), (916, 303840), (960, 289914), (1055, 263808), (1145, 243072), (1152, 241595), (1266, 219840), (1374, 202560), (1440, 193276), (1688, 164880), (1832, 151920), (1899, 146560), (1920, 144957), (2061, 135040), (2110, 131904), (2290, 121536), (2532, 109920), (2748, 101280), (2880, 96638), (3165, 87936), (3376, 82440), (3435, 81024), (3664, 75960), (3798, 73280), (4122, 67520), (4220, 65952), (4580, 60768), (5064, 54960), (5496, 50640), (5760, 48319), (6330, 43968), (6752, 41220), (6870, 40512), (7328, 37980), (7596, 36640), (8244, 33760), (8440, 32976), (9160, 30384), (9495, 29312), (10128, 27480), (10305, 27008), (10992, 25320), (12660, 21984), (13504, 20610), (13740, 20256), (14656, 18990), (15192, 18320), (16488, 16880)]