254831360

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:291

約数の個数: 216

約数和(自身を含む): 754971840

約数和(自身を除く): 500140480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 64, 68, 70, 80, 85, 98, 112, 119, 128, 136, 140, 160, 170, 196, 224, 238, 239, 245, 256, 272, 280, 320, 340, 392, 448, 476, 478, 490, 544, 560, 595, 640, 680, 784, 833, 896, 952, 956, 980, 1088, 1120, 1190, 1195, 1280, 1360, 1568, 1666, 1673, 1792, 1904, 1912, 1960, 2176, 2240, 2380, 2390, 2720, 3136, 3332, 3346, 3808, 3824, 3920, 4063, 4165, 4352, 4480, 4760, 4780, 5440, 6272, 6664, 6692, 7616, 7648, 7840, 8126, 8330, 8365, 8960, 9520, 9560, 10880, 11711, 12544, 13328, 13384, 15232, 15296, 15680, 16252, 16660, 16730, 19040, 19120, 20315, 21760, 23422, 26656, 26768, 28441, 30464, 30592, 31360, 32504, 33320, 33460, 38080, 38240, 40630, 46844, 53312, 53536, 56882, 58555, 61184, 62720, 65008, 66640, 66920, 76160, 76480, 81260, 93688, 106624, 107072, 113764, 117110, 130016, 133280, 133840, 142205, 152320, 152960, 162520, 187376, 199087, 213248, 214144, 227528, 234220, 260032, 266560, 267680, 284410, 305920, 325040, 374752, 398174, 428288, 455056, 468440, 520064, 533120, 535360, 568820, 650080, 749504, 796348, 910112, 936880, 995435, 1040128, 1066240, 1070720, 1137640, 1300160, 1499008, 1592696, 1820224, 1873760, 1990870, 2141440, 2275280, 2600320, 2998016, 3185392, 3640448, 3747520, 3981740, 4550560, 5200640, 6370784, 7280896, 7495040, 7963480, 9101120, 12741568, 14990080, 15926960, 18202240, 25483136, 31853920, 36404480, 50966272, 63707840, 127415680, 254831360]

約数ペア:

[(1, 254831360), (2, 127415680), (4, 63707840), (5, 50966272), (7, 36404480), (8, 31853920), (10, 25483136), (14, 18202240), (16, 15926960), (17, 14990080), (20, 12741568), (28, 9101120), (32, 7963480), (34, 7495040), (35, 7280896), (40, 6370784), (49, 5200640), (56, 4550560), (64, 3981740), (68, 3747520), (70, 3640448), (80, 3185392), (85, 2998016), (98, 2600320), (112, 2275280), (119, 2141440), (128, 1990870), (136, 1873760), (140, 1820224), (160, 1592696), (170, 1499008), (196, 1300160), (224, 1137640), (238, 1070720), (239, 1066240), (245, 1040128), (256, 995435), (272, 936880), (280, 910112), (320, 796348), (340, 749504), (392, 650080), (448, 568820), (476, 535360), (478, 533120), (490, 520064), (544, 468440), (560, 455056), (595, 428288), (640, 398174), (680, 374752), (784, 325040), (833, 305920), (896, 284410), (952, 267680), (956, 266560), (980, 260032), (1088, 234220), (1120, 227528), (1190, 214144), (1195, 213248), (1280, 199087), (1360, 187376), (1568, 162520), (1666, 152960), (1673, 152320), (1792, 142205), (1904, 133840), (1912, 133280), (1960, 130016), (2176, 117110), (2240, 113764), (2380, 107072), (2390, 106624), (2720, 93688), (3136, 81260), (3332, 76480), (3346, 76160), (3808, 66920), (3824, 66640), (3920, 65008), (4063, 62720), (4165, 61184), (4352, 58555), (4480, 56882), (4760, 53536), (4780, 53312), (5440, 46844), (6272, 40630), (6664, 38240), (6692, 38080), (7616, 33460), (7648, 33320), (7840, 32504), (8126, 31360), (8330, 30592), (8365, 30464), (8960, 28441), (9520, 26768), (9560, 26656), (10880, 23422), (11711, 21760), (12544, 20315), (13328, 19120), (13384, 19040), (15232, 16730), (15296, 16660), (15680, 16252)]