257340160

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{373}}^1$

素因数の和:419

約数の個数: 216

約数和(自身を含む): 784331856

約数和(自身を除く): 526991696

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 64, 70, 77, 80, 88, 98, 110, 112, 128, 140, 154, 160, 176, 196, 220, 224, 245, 256, 280, 308, 320, 352, 373, 385, 392, 440, 448, 490, 539, 560, 616, 640, 704, 746, 770, 784, 880, 896, 980, 1078, 1120, 1232, 1280, 1408, 1492, 1540, 1568, 1760, 1792, 1865, 1960, 2156, 2240, 2464, 2611, 2695, 2816, 2984, 3080, 3136, 3520, 3730, 3920, 4103, 4312, 4480, 4928, 5222, 5390, 5968, 6160, 6272, 7040, 7460, 7840, 8206, 8624, 8960, 9856, 10444, 10780, 11936, 12320, 12544, 13055, 14080, 14920, 15680, 16412, 17248, 18277, 19712, 20515, 20888, 21560, 23872, 24640, 26110, 28721, 29840, 31360, 32824, 34496, 36554, 41030, 41776, 43120, 47744, 49280, 52220, 57442, 59680, 62720, 65648, 68992, 73108, 82060, 83552, 86240, 91385, 95488, 98560, 104440, 114884, 119360, 131296, 137984, 143605, 146216, 164120, 167104, 172480, 182770, 201047, 208880, 229768, 238720, 262592, 287210, 292432, 328240, 334208, 344960, 365540, 402094, 417760, 459536, 477440, 525184, 574420, 584864, 656480, 668416, 689920, 731080, 804188, 835520, 919072, 1005235, 1050368, 1148840, 1169728, 1312960, 1462160, 1608376, 1671040, 1838144, 2010470, 2297680, 2339456, 2625920, 2924320, 3216752, 3342080, 3676288, 4020940, 4595360, 4678912, 5251840, 5848640, 6433504, 7352576, 8041880, 9190720, 11697280, 12867008, 16083760, 18381440, 23394560, 25734016, 32167520, 36762880, 51468032, 64335040, 128670080, 257340160]

約数ペア:

[(1, 257340160), (2, 128670080), (4, 64335040), (5, 51468032), (7, 36762880), (8, 32167520), (10, 25734016), (11, 23394560), (14, 18381440), (16, 16083760), (20, 12867008), (22, 11697280), (28, 9190720), (32, 8041880), (35, 7352576), (40, 6433504), (44, 5848640), (49, 5251840), (55, 4678912), (56, 4595360), (64, 4020940), (70, 3676288), (77, 3342080), (80, 3216752), (88, 2924320), (98, 2625920), (110, 2339456), (112, 2297680), (128, 2010470), (140, 1838144), (154, 1671040), (160, 1608376), (176, 1462160), (196, 1312960), (220, 1169728), (224, 1148840), (245, 1050368), (256, 1005235), (280, 919072), (308, 835520), (320, 804188), (352, 731080), (373, 689920), (385, 668416), (392, 656480), (440, 584864), (448, 574420), (490, 525184), (539, 477440), (560, 459536), (616, 417760), (640, 402094), (704, 365540), (746, 344960), (770, 334208), (784, 328240), (880, 292432), (896, 287210), (980, 262592), (1078, 238720), (1120, 229768), (1232, 208880), (1280, 201047), (1408, 182770), (1492, 172480), (1540, 167104), (1568, 164120), (1760, 146216), (1792, 143605), (1865, 137984), (1960, 131296), (2156, 119360), (2240, 114884), (2464, 104440), (2611, 98560), (2695, 95488), (2816, 91385), (2984, 86240), (3080, 83552), (3136, 82060), (3520, 73108), (3730, 68992), (3920, 65648), (4103, 62720), (4312, 59680), (4480, 57442), (4928, 52220), (5222, 49280), (5390, 47744), (5968, 43120), (6160, 41776), (6272, 41030), (7040, 36554), (7460, 34496), (7840, 32824), (8206, 31360), (8624, 29840), (8960, 28721), (9856, 26110), (10444, 24640), (10780, 23872), (11936, 21560), (12320, 20888), (12544, 20515), (13055, 19712), (14080, 18277), (14920, 17248), (15680, 16412)]