247345280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:207

約数の個数: 256

約数和(自身を含む): 756725760

約数和(自身を除く): 509380480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 128, 130, 137, 140, 155, 160, 182, 208, 217, 224, 248, 260, 274, 280, 310, 320, 364, 403, 416, 434, 448, 455, 496, 520, 548, 560, 620, 640, 685, 728, 806, 832, 868, 896, 910, 959, 992, 1040, 1085, 1096, 1120, 1240, 1370, 1456, 1612, 1664, 1736, 1781, 1820, 1918, 1984, 2015, 2080, 2170, 2192, 2240, 2480, 2740, 2821, 2912, 3224, 3472, 3562, 3640, 3836, 3968, 4030, 4160, 4247, 4340, 4384, 4480, 4795, 4960, 5480, 5642, 5824, 6448, 6944, 7124, 7280, 7672, 8060, 8320, 8494, 8680, 8768, 8905, 9590, 9920, 10960, 11284, 11648, 12467, 12896, 13888, 14105, 14248, 14560, 15344, 16120, 16988, 17360, 17536, 17810, 19180, 19840, 21235, 21920, 22568, 24934, 25792, 27776, 28210, 28496, 29120, 29729, 30688, 32240, 33976, 34720, 35620, 38360, 42470, 43840, 45136, 49868, 51584, 55211, 56420, 56992, 58240, 59458, 61376, 62335, 64480, 67952, 69440, 71240, 76720, 84940, 87680, 90272, 99736, 110422, 112840, 113984, 118916, 122752, 124670, 128960, 135904, 138880, 142480, 148645, 153440, 169880, 180544, 199472, 220844, 225680, 227968, 237832, 249340, 257920, 271808, 276055, 284960, 297290, 306880, 339760, 361088, 386477, 398944, 441688, 451360, 475664, 498680, 543616, 552110, 569920, 594580, 613760, 679520, 772954, 797888, 883376, 902720, 951328, 997360, 1104220, 1139840, 1189160, 1359040, 1545908, 1595776, 1766752, 1805440, 1902656, 1932385, 1994720, 2208440, 2378320, 2718080, 3091816, 3533504, 3805312, 3864770, 3989440, 4416880, 4756640, 6183632, 7067008, 7729540, 7978880, 8833760, 9513280, 12367264, 15459080, 17667520, 19026560, 24734528, 30918160, 35335040, 49469056, 61836320, 123672640, 247345280]

約数ペア:

[(1, 247345280), (2, 123672640), (4, 61836320), (5, 49469056), (7, 35335040), (8, 30918160), (10, 24734528), (13, 19026560), (14, 17667520), (16, 15459080), (20, 12367264), (26, 9513280), (28, 8833760), (31, 7978880), (32, 7729540), (35, 7067008), (40, 6183632), (52, 4756640), (56, 4416880), (62, 3989440), (64, 3864770), (65, 3805312), (70, 3533504), (80, 3091816), (91, 2718080), (104, 2378320), (112, 2208440), (124, 1994720), (128, 1932385), (130, 1902656), (137, 1805440), (140, 1766752), (155, 1595776), (160, 1545908), (182, 1359040), (208, 1189160), (217, 1139840), (224, 1104220), (248, 997360), (260, 951328), (274, 902720), (280, 883376), (310, 797888), (320, 772954), (364, 679520), (403, 613760), (416, 594580), (434, 569920), (448, 552110), (455, 543616), (496, 498680), (520, 475664), (548, 451360), (560, 441688), (620, 398944), (640, 386477), (685, 361088), (728, 339760), (806, 306880), (832, 297290), (868, 284960), (896, 276055), (910, 271808), (959, 257920), (992, 249340), (1040, 237832), (1085, 227968), (1096, 225680), (1120, 220844), (1240, 199472), (1370, 180544), (1456, 169880), (1612, 153440), (1664, 148645), (1736, 142480), (1781, 138880), (1820, 135904), (1918, 128960), (1984, 124670), (2015, 122752), (2080, 118916), (2170, 113984), (2192, 112840), (2240, 110422), (2480, 99736), (2740, 90272), (2821, 87680), (2912, 84940), (3224, 76720), (3472, 71240), (3562, 69440), (3640, 67952), (3836, 64480), (3968, 62335), (4030, 61376), (4160, 59458), (4247, 58240), (4340, 56992), (4384, 56420), (4480, 55211), (4795, 51584), (4960, 49868), (5480, 45136), (5642, 43840), (5824, 42470), (6448, 38360), (6944, 35620), (7124, 34720), (7280, 33976), (7672, 32240), (8060, 30688), (8320, 29729), (8494, 29120), (8680, 28496), (8768, 28210), (8905, 27776), (9590, 25792), (9920, 24934), (10960, 22568), (11284, 21920), (11648, 21235), (12467, 19840), (12896, 19180), (13888, 17810), (14105, 17536), (14248, 17360), (14560, 16988), (15344, 16120)]