287898240

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:751

約数の個数: 256

約数和(自身を含む): 1084170240

約数和(自身を除く): 796272000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 64, 70, 80, 84, 93, 96, 105, 112, 120, 124, 128, 140, 155, 160, 168, 186, 192, 210, 217, 224, 240, 248, 280, 310, 320, 336, 372, 384, 420, 434, 448, 465, 480, 496, 560, 620, 640, 651, 672, 691, 744, 840, 868, 896, 930, 960, 992, 1085, 1120, 1240, 1302, 1344, 1382, 1488, 1680, 1736, 1860, 1920, 1984, 2073, 2170, 2240, 2480, 2604, 2688, 2764, 2976, 3255, 3360, 3455, 3472, 3720, 3968, 4146, 4340, 4480, 4837, 4960, 5208, 5528, 5952, 6510, 6720, 6910, 6944, 7440, 8292, 8680, 9674, 9920, 10365, 10416, 11056, 11904, 13020, 13440, 13820, 13888, 14511, 14880, 16584, 17360, 19348, 19840, 20730, 20832, 21421, 22112, 24185, 26040, 27640, 27776, 29022, 29760, 33168, 34720, 38696, 41460, 41664, 42842, 44224, 48370, 52080, 55280, 58044, 59520, 64263, 66336, 69440, 72555, 77392, 82920, 83328, 85684, 88448, 96740, 104160, 107105, 110560, 116088, 128526, 132672, 138880, 145110, 149947, 154784, 165840, 171368, 193480, 208320, 214210, 221120, 232176, 257052, 265344, 290220, 299894, 309568, 321315, 331680, 342736, 386960, 416640, 428420, 442240, 449841, 464352, 514104, 580440, 599788, 619136, 642630, 663360, 685472, 749735, 773920, 856840, 899682, 928704, 1028208, 1160880, 1199576, 1285260, 1326720, 1370944, 1499470, 1547840, 1713680, 1799364, 1857408, 2056416, 2249205, 2321760, 2399152, 2570520, 2741888, 2998940, 3095680, 3427360, 3598728, 4112832, 4498410, 4643520, 4798304, 5141040, 5997880, 6854720, 7197456, 8225664, 8996820, 9287040, 9596608, 10282080, 11995760, 13709440, 14394912, 17993640, 19193216, 20564160, 23991520, 28789824, 35987280, 41128320, 47983040, 57579648, 71974560, 95966080, 143949120, 287898240]

約数ペア:

[(1, 287898240), (2, 143949120), (3, 95966080), (4, 71974560), (5, 57579648), (6, 47983040), (7, 41128320), (8, 35987280), (10, 28789824), (12, 23991520), (14, 20564160), (15, 19193216), (16, 17993640), (20, 14394912), (21, 13709440), (24, 11995760), (28, 10282080), (30, 9596608), (31, 9287040), (32, 8996820), (35, 8225664), (40, 7197456), (42, 6854720), (48, 5997880), (56, 5141040), (60, 4798304), (62, 4643520), (64, 4498410), (70, 4112832), (80, 3598728), (84, 3427360), (93, 3095680), (96, 2998940), (105, 2741888), (112, 2570520), (120, 2399152), (124, 2321760), (128, 2249205), (140, 2056416), (155, 1857408), (160, 1799364), (168, 1713680), (186, 1547840), (192, 1499470), (210, 1370944), (217, 1326720), (224, 1285260), (240, 1199576), (248, 1160880), (280, 1028208), (310, 928704), (320, 899682), (336, 856840), (372, 773920), (384, 749735), (420, 685472), (434, 663360), (448, 642630), (465, 619136), (480, 599788), (496, 580440), (560, 514104), (620, 464352), (640, 449841), (651, 442240), (672, 428420), (691, 416640), (744, 386960), (840, 342736), (868, 331680), (896, 321315), (930, 309568), (960, 299894), (992, 290220), (1085, 265344), (1120, 257052), (1240, 232176), (1302, 221120), (1344, 214210), (1382, 208320), (1488, 193480), (1680, 171368), (1736, 165840), (1860, 154784), (1920, 149947), (1984, 145110), (2073, 138880), (2170, 132672), (2240, 128526), (2480, 116088), (2604, 110560), (2688, 107105), (2764, 104160), (2976, 96740), (3255, 88448), (3360, 85684), (3455, 83328), (3472, 82920), (3720, 77392), (3968, 72555), (4146, 69440), (4340, 66336), (4480, 64263), (4837, 59520), (4960, 58044), (5208, 55280), (5528, 52080), (5952, 48370), (6510, 44224), (6720, 42842), (6910, 41664), (6944, 41460), (7440, 38696), (8292, 34720), (8680, 33168), (9674, 29760), (9920, 29022), (10365, 27776), (10416, 27640), (11056, 26040), (11904, 24185), (13020, 22112), (13440, 21421), (13820, 20832), (13888, 20730), (14511, 19840), (14880, 19348), (16584, 17360)]