256372480

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:143

約数の個数: 288

約数和(自身を含む): 791175168

約数和(自身を除く): 534802688

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, 71, 80, 91, 104, 112, 124, 128, 130, 140, 142, 155, 160, 182, 208, 217, 224, 248, 256, 260, 280, 284, 310, 320, 355, 364, 403, 416, 434, 448, 455, 496, 497, 520, 560, 568, 620, 640, 710, 728, 806, 832, 868, 896, 910, 923, 992, 994, 1040, 1085, 1120, 1136, 1240, 1280, 1420, 1456, 1612, 1664, 1736, 1792, 1820, 1846, 1984, 1988, 2015, 2080, 2170, 2201, 2240, 2272, 2480, 2485, 2821, 2840, 2912, 3224, 3328, 3472, 3640, 3692, 3968, 3976, 4030, 4160, 4340, 4402, 4480, 4544, 4615, 4960, 4970, 5642, 5680, 5824, 6448, 6461, 6944, 7280, 7384, 7936, 7952, 8060, 8320, 8680, 8804, 8960, 9088, 9230, 9920, 9940, 11005, 11284, 11360, 11648, 12896, 12922, 13888, 14105, 14560, 14768, 15407, 15904, 16120, 16640, 17360, 17608, 18176, 18460, 19840, 19880, 22010, 22568, 22720, 23296, 25792, 25844, 27776, 28210, 28613, 29120, 29536, 30814, 31808, 32240, 32305, 34720, 35216, 36920, 39680, 39760, 44020, 45136, 45440, 51584, 51688, 55552, 56420, 57226, 58240, 59072, 61628, 63616, 64480, 64610, 69440, 70432, 73840, 77035, 79520, 88040, 90272, 90880, 103168, 103376, 112840, 114452, 116480, 118144, 123256, 127232, 128960, 129220, 138880, 140864, 143065, 147680, 154070, 159040, 176080, 180544, 200291, 206752, 225680, 228904, 236288, 246512, 257920, 258440, 277760, 281728, 286130, 295360, 308140, 318080, 352160, 361088, 400582, 413504, 451360, 457808, 493024, 515840, 516880, 563456, 572260, 590720, 616280, 636160, 704320, 722176, 801164, 827008, 902720, 915616, 986048, 1001455, 1033760, 1144520, 1181440, 1232560, 1408640, 1602328, 1654016, 1805440, 1831232, 1972096, 2002910, 2067520, 2289040, 2465120, 2817280, 3204656, 3610880, 3662464, 3944192, 4005820, 4135040, 4578080, 4930240, 6409312, 7324928, 8011640, 8270080, 9156160, 9860480, 12818624, 16023280, 18312320, 19720960, 25637248, 32046560, 36624640, 51274496, 64093120, 128186240, 256372480]

約数ペア:

[(1, 256372480), (2, 128186240), (4, 64093120), (5, 51274496), (7, 36624640), (8, 32046560), (10, 25637248), (13, 19720960), (14, 18312320), (16, 16023280), (20, 12818624), (26, 9860480), (28, 9156160), (31, 8270080), (32, 8011640), (35, 7324928), (40, 6409312), (52, 4930240), (56, 4578080), (62, 4135040), (64, 4005820), (65, 3944192), (70, 3662464), (71, 3610880), (80, 3204656), (91, 2817280), (104, 2465120), (112, 2289040), (124, 2067520), (128, 2002910), (130, 1972096), (140, 1831232), (142, 1805440), (155, 1654016), (160, 1602328), (182, 1408640), (208, 1232560), (217, 1181440), (224, 1144520), (248, 1033760), (256, 1001455), (260, 986048), (280, 915616), (284, 902720), (310, 827008), (320, 801164), (355, 722176), (364, 704320), (403, 636160), (416, 616280), (434, 590720), (448, 572260), (455, 563456), (496, 516880), (497, 515840), (520, 493024), (560, 457808), (568, 451360), (620, 413504), (640, 400582), (710, 361088), (728, 352160), (806, 318080), (832, 308140), (868, 295360), (896, 286130), (910, 281728), (923, 277760), (992, 258440), (994, 257920), (1040, 246512), (1085, 236288), (1120, 228904), (1136, 225680), (1240, 206752), (1280, 200291), (1420, 180544), (1456, 176080), (1612, 159040), (1664, 154070), (1736, 147680), (1792, 143065), (1820, 140864), (1846, 138880), (1984, 129220), (1988, 128960), (2015, 127232), (2080, 123256), (2170, 118144), (2201, 116480), (2240, 114452), (2272, 112840), (2480, 103376), (2485, 103168), (2821, 90880), (2840, 90272), (2912, 88040), (3224, 79520), (3328, 77035), (3472, 73840), (3640, 70432), (3692, 69440), (3968, 64610), (3976, 64480), (4030, 63616), (4160, 61628), (4340, 59072), (4402, 58240), (4480, 57226), (4544, 56420), (4615, 55552), (4960, 51688), (4970, 51584), (5642, 45440), (5680, 45136), (5824, 44020), (6448, 39760), (6461, 39680), (6944, 36920), (7280, 35216), (7384, 34720), (7936, 32305), (7952, 32240), (8060, 31808), (8320, 30814), (8680, 29536), (8804, 29120), (8960, 28613), (9088, 28210), (9230, 27776), (9920, 25844), (9940, 25792), (11005, 23296), (11284, 22720), (11360, 22568), (11648, 22010), (12896, 19880), (12922, 19840), (13888, 18460), (14105, 18176), (14560, 17608), (14768, 17360), (15407, 16640), (15904, 16120)]