257010880

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:511

約数の個数: 168

約数和(自身を含む): 732818448

約数和(自身を除く): 475807568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 64, 70, 74, 80, 98, 112, 140, 148, 160, 185, 196, 224, 245, 259, 280, 296, 320, 370, 392, 443, 448, 490, 518, 560, 592, 740, 784, 886, 980, 1036, 1120, 1184, 1295, 1480, 1568, 1772, 1813, 1960, 2072, 2215, 2240, 2368, 2590, 2960, 3101, 3136, 3544, 3626, 3920, 4144, 4430, 5180, 5920, 6202, 7088, 7252, 7840, 8288, 8860, 9065, 10360, 11840, 12404, 14176, 14504, 15505, 15680, 16391, 16576, 17720, 18130, 20720, 21707, 24808, 28352, 29008, 31010, 32782, 35440, 36260, 41440, 43414, 49616, 58016, 62020, 65564, 70880, 72520, 81955, 82880, 86828, 99232, 108535, 114737, 116032, 124040, 131128, 141760, 145040, 163910, 173656, 198464, 217070, 229474, 248080, 262256, 290080, 327820, 347312, 434140, 458948, 496160, 524512, 573685, 580160, 655640, 694624, 803159, 868280, 917896, 992320, 1049024, 1147370, 1311280, 1389248, 1606318, 1736560, 1835792, 2294740, 2622560, 3212636, 3473120, 3671584, 4015795, 4589480, 5245120, 6425272, 6946240, 7343168, 8031590, 9178960, 12850544, 16063180, 18357920, 25701088, 32126360, 36715840, 51402176, 64252720, 128505440, 257010880]

約数ペア:

[(1, 257010880), (2, 128505440), (4, 64252720), (5, 51402176), (7, 36715840), (8, 32126360), (10, 25701088), (14, 18357920), (16, 16063180), (20, 12850544), (28, 9178960), (32, 8031590), (35, 7343168), (37, 6946240), (40, 6425272), (49, 5245120), (56, 4589480), (64, 4015795), (70, 3671584), (74, 3473120), (80, 3212636), (98, 2622560), (112, 2294740), (140, 1835792), (148, 1736560), (160, 1606318), (185, 1389248), (196, 1311280), (224, 1147370), (245, 1049024), (259, 992320), (280, 917896), (296, 868280), (320, 803159), (370, 694624), (392, 655640), (443, 580160), (448, 573685), (490, 524512), (518, 496160), (560, 458948), (592, 434140), (740, 347312), (784, 327820), (886, 290080), (980, 262256), (1036, 248080), (1120, 229474), (1184, 217070), (1295, 198464), (1480, 173656), (1568, 163910), (1772, 145040), (1813, 141760), (1960, 131128), (2072, 124040), (2215, 116032), (2240, 114737), (2368, 108535), (2590, 99232), (2960, 86828), (3101, 82880), (3136, 81955), (3544, 72520), (3626, 70880), (3920, 65564), (4144, 62020), (4430, 58016), (5180, 49616), (5920, 43414), (6202, 41440), (7088, 36260), (7252, 35440), (7840, 32782), (8288, 31010), (8860, 29008), (9065, 28352), (10360, 24808), (11840, 21707), (12404, 20720), (14176, 18130), (14504, 17720), (15505, 16576), (15680, 16391)]