257454720

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:392

約数の個数: 256

約数和(自身を含む): 934156800

約数和(自身を除く): 676702080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 47, 48, 54, 60, 64, 72, 80, 90, 94, 96, 108, 120, 128, 135, 141, 144, 160, 180, 188, 192, 216, 235, 240, 270, 282, 288, 317, 320, 360, 376, 384, 423, 432, 470, 480, 540, 564, 576, 634, 640, 705, 720, 752, 846, 864, 940, 951, 960, 1080, 1128, 1152, 1268, 1269, 1410, 1440, 1504, 1585, 1692, 1728, 1880, 1902, 1920, 2115, 2160, 2256, 2536, 2538, 2820, 2853, 2880, 3008, 3170, 3384, 3456, 3760, 3804, 4230, 4320, 4512, 4755, 5072, 5076, 5640, 5706, 5760, 6016, 6340, 6345, 6768, 7520, 7608, 8460, 8559, 8640, 9024, 9510, 10144, 10152, 11280, 11412, 12680, 12690, 13536, 14265, 14899, 15040, 15216, 16920, 17118, 17280, 18048, 19020, 20288, 20304, 22560, 22824, 25360, 25380, 27072, 28530, 29798, 30080, 30432, 33840, 34236, 38040, 40576, 40608, 42795, 44697, 45120, 45648, 50720, 50760, 54144, 57060, 59596, 60864, 67680, 68472, 74495, 76080, 81216, 85590, 89394, 90240, 91296, 101440, 101520, 114120, 119192, 121728, 134091, 135360, 136944, 148990, 152160, 162432, 171180, 178788, 182592, 202880, 203040, 223485, 228240, 238384, 268182, 270720, 273888, 297980, 304320, 342360, 357576, 365184, 402273, 406080, 446970, 456480, 476768, 536364, 547776, 595960, 608640, 670455, 684720, 715152, 804546, 812160, 893940, 912960, 953536, 1072728, 1095552, 1191920, 1340910, 1369440, 1430304, 1609092, 1787880, 1825920, 1907072, 2011365, 2145456, 2383840, 2681820, 2738880, 2860608, 3218184, 3575760, 4022730, 4290912, 4767680, 5363640, 5477760, 5721216, 6436368, 7151520, 8045460, 8581824, 9535360, 10727280, 12872736, 14303040, 16090920, 17163648, 21454560, 25745472, 28606080, 32181840, 42909120, 51490944, 64363680, 85818240, 128727360, 257454720]

約数ペア:

[(1, 257454720), (2, 128727360), (3, 85818240), (4, 64363680), (5, 51490944), (6, 42909120), (8, 32181840), (9, 28606080), (10, 25745472), (12, 21454560), (15, 17163648), (16, 16090920), (18, 14303040), (20, 12872736), (24, 10727280), (27, 9535360), (30, 8581824), (32, 8045460), (36, 7151520), (40, 6436368), (45, 5721216), (47, 5477760), (48, 5363640), (54, 4767680), (60, 4290912), (64, 4022730), (72, 3575760), (80, 3218184), (90, 2860608), (94, 2738880), (96, 2681820), (108, 2383840), (120, 2145456), (128, 2011365), (135, 1907072), (141, 1825920), (144, 1787880), (160, 1609092), (180, 1430304), (188, 1369440), (192, 1340910), (216, 1191920), (235, 1095552), (240, 1072728), (270, 953536), (282, 912960), (288, 893940), (317, 812160), (320, 804546), (360, 715152), (376, 684720), (384, 670455), (423, 608640), (432, 595960), (470, 547776), (480, 536364), (540, 476768), (564, 456480), (576, 446970), (634, 406080), (640, 402273), (705, 365184), (720, 357576), (752, 342360), (846, 304320), (864, 297980), (940, 273888), (951, 270720), (960, 268182), (1080, 238384), (1128, 228240), (1152, 223485), (1268, 203040), (1269, 202880), (1410, 182592), (1440, 178788), (1504, 171180), (1585, 162432), (1692, 152160), (1728, 148990), (1880, 136944), (1902, 135360), (1920, 134091), (2115, 121728), (2160, 119192), (2256, 114120), (2536, 101520), (2538, 101440), (2820, 91296), (2853, 90240), (2880, 89394), (3008, 85590), (3170, 81216), (3384, 76080), (3456, 74495), (3760, 68472), (3804, 67680), (4230, 60864), (4320, 59596), (4512, 57060), (4755, 54144), (5072, 50760), (5076, 50720), (5640, 45648), (5706, 45120), (5760, 44697), (6016, 42795), (6340, 40608), (6345, 40576), (6768, 38040), (7520, 34236), (7608, 33840), (8460, 30432), (8559, 30080), (8640, 29798), (9024, 28530), (9510, 27072), (10144, 25380), (10152, 25360), (11280, 22824), (11412, 22560), (12680, 20304), (12690, 20288), (13536, 19020), (14265, 18048), (14899, 17280), (15040, 17118), (15216, 16920)]