79981440

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{541}}^1$

素因数の和:581

約数の個数: 256

約数和(自身を含む): 318435840

約数和(自身を除く): 238454400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 128, 132, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 264, 280, 308, 320, 330, 336, 352, 384, 385, 420, 440, 448, 462, 480, 528, 541, 560, 616, 640, 660, 672, 704, 770, 840, 880, 896, 924, 960, 1056, 1082, 1120, 1155, 1232, 1320, 1344, 1408, 1540, 1623, 1680, 1760, 1848, 1920, 2112, 2164, 2240, 2310, 2464, 2640, 2688, 2705, 3080, 3246, 3360, 3520, 3696, 3787, 4224, 4328, 4480, 4620, 4928, 5280, 5410, 5951, 6160, 6492, 6720, 7040, 7392, 7574, 8115, 8656, 9240, 9856, 10560, 10820, 11361, 11902, 12320, 12984, 13440, 14784, 15148, 16230, 17312, 17853, 18480, 18935, 21120, 21640, 22722, 23804, 24640, 25968, 29568, 29755, 30296, 32460, 34624, 35706, 36960, 37870, 41657, 43280, 45444, 47608, 49280, 51936, 56805, 59510, 60592, 64920, 69248, 71412, 73920, 75740, 83314, 86560, 89265, 90888, 95216, 103872, 113610, 119020, 121184, 124971, 129840, 142824, 147840, 151480, 166628, 173120, 178530, 181776, 190432, 207744, 208285, 227220, 238040, 242368, 249942, 259680, 285648, 302960, 333256, 346240, 357060, 363552, 380864, 416570, 454440, 476080, 484736, 499884, 519360, 571296, 605920, 624855, 666512, 714120, 727104, 761728, 833140, 908880, 952160, 999768, 1038720, 1142592, 1211840, 1249710, 1333024, 1428240, 1454208, 1666280, 1817760, 1904320, 1999536, 2285184, 2423680, 2499420, 2666048, 2856480, 3332560, 3635520, 3808640, 3999072, 4998840, 5332096, 5712960, 6665120, 7271040, 7998144, 9997680, 11425920, 13330240, 15996288, 19995360, 26660480, 39990720, 79981440]

約数ペア:

[(1, 79981440), (2, 39990720), (3, 26660480), (4, 19995360), (5, 15996288), (6, 13330240), (7, 11425920), (8, 9997680), (10, 7998144), (11, 7271040), (12, 6665120), (14, 5712960), (15, 5332096), (16, 4998840), (20, 3999072), (21, 3808640), (22, 3635520), (24, 3332560), (28, 2856480), (30, 2666048), (32, 2499420), (33, 2423680), (35, 2285184), (40, 1999536), (42, 1904320), (44, 1817760), (48, 1666280), (55, 1454208), (56, 1428240), (60, 1333024), (64, 1249710), (66, 1211840), (70, 1142592), (77, 1038720), (80, 999768), (84, 952160), (88, 908880), (96, 833140), (105, 761728), (110, 727104), (112, 714120), (120, 666512), (128, 624855), (132, 605920), (140, 571296), (154, 519360), (160, 499884), (165, 484736), (168, 476080), (176, 454440), (192, 416570), (210, 380864), (220, 363552), (224, 357060), (231, 346240), (240, 333256), (264, 302960), (280, 285648), (308, 259680), (320, 249942), (330, 242368), (336, 238040), (352, 227220), (384, 208285), (385, 207744), (420, 190432), (440, 181776), (448, 178530), (462, 173120), (480, 166628), (528, 151480), (541, 147840), (560, 142824), (616, 129840), (640, 124971), (660, 121184), (672, 119020), (704, 113610), (770, 103872), (840, 95216), (880, 90888), (896, 89265), (924, 86560), (960, 83314), (1056, 75740), (1082, 73920), (1120, 71412), (1155, 69248), (1232, 64920), (1320, 60592), (1344, 59510), (1408, 56805), (1540, 51936), (1623, 49280), (1680, 47608), (1760, 45444), (1848, 43280), (1920, 41657), (2112, 37870), (2164, 36960), (2240, 35706), (2310, 34624), (2464, 32460), (2640, 30296), (2688, 29755), (2705, 29568), (3080, 25968), (3246, 24640), (3360, 23804), (3520, 22722), (3696, 21640), (3787, 21120), (4224, 18935), (4328, 18480), (4480, 17853), (4620, 17312), (4928, 16230), (5280, 15148), (5410, 14784), (5951, 13440), (6160, 12984), (6492, 12320), (6720, 11902), (7040, 11361), (7392, 10820), (7574, 10560), (8115, 9856), (8656, 9240)]