279934987520

素因数分解:

$2^8\times 5^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1\times {\mathrm{3911}}^1$

素因数の和:4412

約数の個数: 144

約数和(自身を含む): 676472428800

約数和(自身を除く): 396537441280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 281, 320, 398, 562, 640, 796, 995, 1124, 1280, 1405, 1592, 1990, 2248, 2810, 3184, 3911, 3980, 4496, 5620, 6368, 7822, 7960, 8992, 11240, 12736, 15644, 15920, 17984, 19555, 22480, 25472, 31288, 31840, 35968, 39110, 44960, 50944, 55919, 62576, 63680, 71936, 78220, 89920, 111838, 125152, 127360, 156440, 179840, 223676, 250304, 254720, 279595, 312880, 359680, 447352, 500608, 559190, 625760, 778289, 894704, 1001216, 1098991, 1118380, 1251520, 1556578, 1789408, 2197982, 2236760, 2503040, 3113156, 3578816, 3891445, 4395964, 4473520, 5006080, 5494955, 6226312, 7157632, 7782890, 8791928, 8947040, 10989910, 12452624, 14315264, 15565780, 17583856, 17894080, 21979820, 24905248, 31131560, 35167712, 35788160, 43959640, 49810496, 62263120, 70335424, 71576320, 87919280, 99620992, 124526240, 140670848, 175838560, 199241984, 218699209, 249052480, 281341696, 351677120, 437398418, 498104960, 703354240, 874796836, 996209920, 1093496045, 1406708480, 1749593672, 2186992090, 3499187344, 4373984180, 6998374688, 8747968360, 13996749376, 17495936720, 27993498752, 34991873440, 55986997504, 69983746880, 139967493760, 279934987520]

約数ペア:

[(1, 279934987520), (2, 139967493760), (4, 69983746880), (5, 55986997504), (8, 34991873440), (10, 27993498752), (16, 17495936720), (20, 13996749376), (32, 8747968360), (40, 6998374688), (64, 4373984180), (80, 3499187344), (128, 2186992090), (160, 1749593672), (199, 1406708480), (256, 1093496045), (281, 996209920), (320, 874796836), (398, 703354240), (562, 498104960), (640, 437398418), (796, 351677120), (995, 281341696), (1124, 249052480), (1280, 218699209), (1405, 199241984), (1592, 175838560), (1990, 140670848), (2248, 124526240), (2810, 99620992), (3184, 87919280), (3911, 71576320), (3980, 70335424), (4496, 62263120), (5620, 49810496), (6368, 43959640), (7822, 35788160), (7960, 35167712), (8992, 31131560), (11240, 24905248), (12736, 21979820), (15644, 17894080), (15920, 17583856), (17984, 15565780), (19555, 14315264), (22480, 12452624), (25472, 10989910), (31288, 8947040), (31840, 8791928), (35968, 7782890), (39110, 7157632), (44960, 6226312), (50944, 5494955), (55919, 5006080), (62576, 4473520), (63680, 4395964), (71936, 3891445), (78220, 3578816), (89920, 3113156), (111838, 2503040), (125152, 2236760), (127360, 2197982), (156440, 1789408), (179840, 1556578), (223676, 1251520), (250304, 1118380), (254720, 1098991), (279595, 1001216), (312880, 894704), (359680, 778289), (447352, 625760), (500608, 559190)]