257516280

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1481}}^1$

素因数の和:1531

約数の個数: 256

約数和(自身を含む): 1024358400

約数和(自身を除く): 766842120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 27, 28, 30, 35, 36, 40, 42, 45, 46, 54, 56, 60, 63, 69, 70, 72, 84, 90, 92, 105, 108, 115, 120, 126, 135, 138, 140, 161, 168, 180, 184, 189, 207, 210, 216, 230, 252, 270, 276, 280, 315, 322, 345, 360, 378, 414, 420, 460, 483, 504, 540, 552, 621, 630, 644, 690, 756, 805, 828, 840, 920, 945, 966, 1035, 1080, 1242, 1260, 1288, 1380, 1449, 1481, 1512, 1610, 1656, 1890, 1932, 2070, 2415, 2484, 2520, 2760, 2898, 2962, 3105, 3220, 3780, 3864, 4140, 4347, 4443, 4830, 4968, 5796, 5924, 6210, 6440, 7245, 7405, 7560, 8280, 8694, 8886, 9660, 10367, 11592, 11848, 12420, 13329, 14490, 14810, 17388, 17772, 19320, 20734, 21735, 22215, 24840, 26658, 28980, 29620, 31101, 34063, 34776, 35544, 39987, 41468, 43470, 44430, 51835, 53316, 57960, 59240, 62202, 66645, 68126, 79974, 82936, 86940, 88860, 93303, 102189, 103670, 106632, 124404, 133290, 136252, 155505, 159948, 170315, 173880, 177720, 186606, 199935, 204378, 207340, 238441, 248808, 266580, 272504, 279909, 306567, 311010, 319896, 340630, 373212, 399870, 408756, 414680, 466515, 476882, 510945, 533160, 559818, 613134, 622020, 681260, 715323, 746424, 799740, 817512, 919701, 933030, 953764, 1021890, 1119636, 1192205, 1226268, 1244040, 1362520, 1399545, 1430646, 1532835, 1599480, 1839402, 1866060, 1907528, 2043780, 2145969, 2239272, 2384410, 2452536, 2799090, 2861292, 3065670, 3576615, 3678804, 3732120, 4087560, 4291938, 4598505, 4768820, 5598180, 5722584, 6131340, 6437907, 7153230, 7357608, 8583876, 9197010, 9537640, 10729845, 11196360, 12262680, 12875814, 14306460, 17167752, 18394020, 21459690, 25751628, 28612920, 32189535, 36788040, 42919380, 51503256, 64379070, 85838760, 128758140, 257516280]

約数ペア:

[(1, 257516280), (2, 128758140), (3, 85838760), (4, 64379070), (5, 51503256), (6, 42919380), (7, 36788040), (8, 32189535), (9, 28612920), (10, 25751628), (12, 21459690), (14, 18394020), (15, 17167752), (18, 14306460), (20, 12875814), (21, 12262680), (23, 11196360), (24, 10729845), (27, 9537640), (28, 9197010), (30, 8583876), (35, 7357608), (36, 7153230), (40, 6437907), (42, 6131340), (45, 5722584), (46, 5598180), (54, 4768820), (56, 4598505), (60, 4291938), (63, 4087560), (69, 3732120), (70, 3678804), (72, 3576615), (84, 3065670), (90, 2861292), (92, 2799090), (105, 2452536), (108, 2384410), (115, 2239272), (120, 2145969), (126, 2043780), (135, 1907528), (138, 1866060), (140, 1839402), (161, 1599480), (168, 1532835), (180, 1430646), (184, 1399545), (189, 1362520), (207, 1244040), (210, 1226268), (216, 1192205), (230, 1119636), (252, 1021890), (270, 953764), (276, 933030), (280, 919701), (315, 817512), (322, 799740), (345, 746424), (360, 715323), (378, 681260), (414, 622020), (420, 613134), (460, 559818), (483, 533160), (504, 510945), (540, 476882), (552, 466515), (621, 414680), (630, 408756), (644, 399870), (690, 373212), (756, 340630), (805, 319896), (828, 311010), (840, 306567), (920, 279909), (945, 272504), (966, 266580), (1035, 248808), (1080, 238441), (1242, 207340), (1260, 204378), (1288, 199935), (1380, 186606), (1449, 177720), (1481, 173880), (1512, 170315), (1610, 159948), (1656, 155505), (1890, 136252), (1932, 133290), (2070, 124404), (2415, 106632), (2484, 103670), (2520, 102189), (2760, 93303), (2898, 88860), (2962, 86940), (3105, 82936), (3220, 79974), (3780, 68126), (3864, 66645), (4140, 62202), (4347, 59240), (4443, 57960), (4830, 53316), (4968, 51835), (5796, 44430), (5924, 43470), (6210, 41468), (6440, 39987), (7245, 35544), (7405, 34776), (7560, 34063), (8280, 31101), (8694, 29620), (8886, 28980), (9660, 26658), (10367, 24840), (11592, 22215), (11848, 21735), (12420, 20734), (13329, 19320), (14490, 17772), (14810, 17388)]