321409920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:277

約数の個数: 256

約数和(自身を含む): 1124121600

約数和(自身を除く): 802711680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 79, 80, 96, 104, 120, 128, 130, 156, 158, 160, 163, 192, 195, 208, 237, 240, 260, 312, 316, 320, 326, 384, 390, 395, 416, 474, 480, 489, 520, 624, 632, 640, 652, 780, 790, 815, 832, 948, 960, 978, 1027, 1040, 1185, 1248, 1264, 1304, 1560, 1580, 1630, 1664, 1896, 1920, 1956, 2054, 2080, 2119, 2370, 2445, 2496, 2528, 2608, 3081, 3120, 3160, 3260, 3792, 3912, 4108, 4160, 4238, 4740, 4890, 4992, 5056, 5135, 5216, 6162, 6240, 6320, 6357, 6520, 7584, 7824, 8216, 8320, 8476, 9480, 9780, 10112, 10270, 10432, 10595, 12324, 12480, 12640, 12714, 12877, 13040, 15168, 15405, 15648, 16432, 16952, 18960, 19560, 20540, 20864, 21190, 24648, 24960, 25280, 25428, 25754, 26080, 30336, 30810, 31296, 31785, 32864, 33904, 37920, 38631, 39120, 41080, 42380, 49296, 50560, 50856, 51508, 52160, 61620, 62592, 63570, 64385, 65728, 67808, 75840, 77262, 78240, 82160, 84760, 98592, 101712, 103016, 104320, 123240, 127140, 128770, 131456, 135616, 151680, 154524, 156480, 164320, 167401, 169520, 193155, 197184, 203424, 206032, 246480, 254280, 257540, 271232, 309048, 312960, 328640, 334802, 339040, 386310, 394368, 406848, 412064, 492960, 502203, 508560, 515080, 618096, 657280, 669604, 678080, 772620, 813696, 824128, 837005, 985920, 1004406, 1017120, 1030160, 1236192, 1339208, 1356160, 1545240, 1648256, 1674010, 1971840, 2008812, 2034240, 2060320, 2472384, 2511015, 2678416, 3090480, 3348020, 4017624, 4068480, 4120640, 4944768, 5022030, 5356832, 6180960, 6696040, 8035248, 8241280, 10044060, 10713664, 12361920, 13392080, 16070496, 20088120, 21427328, 24723840, 26784160, 32140992, 40176240, 53568320, 64281984, 80352480, 107136640, 160704960, 321409920]

約数ペア:

[(1, 321409920), (2, 160704960), (3, 107136640), (4, 80352480), (5, 64281984), (6, 53568320), (8, 40176240), (10, 32140992), (12, 26784160), (13, 24723840), (15, 21427328), (16, 20088120), (20, 16070496), (24, 13392080), (26, 12361920), (30, 10713664), (32, 10044060), (39, 8241280), (40, 8035248), (48, 6696040), (52, 6180960), (60, 5356832), (64, 5022030), (65, 4944768), (78, 4120640), (79, 4068480), (80, 4017624), (96, 3348020), (104, 3090480), (120, 2678416), (128, 2511015), (130, 2472384), (156, 2060320), (158, 2034240), (160, 2008812), (163, 1971840), (192, 1674010), (195, 1648256), (208, 1545240), (237, 1356160), (240, 1339208), (260, 1236192), (312, 1030160), (316, 1017120), (320, 1004406), (326, 985920), (384, 837005), (390, 824128), (395, 813696), (416, 772620), (474, 678080), (480, 669604), (489, 657280), (520, 618096), (624, 515080), (632, 508560), (640, 502203), (652, 492960), (780, 412064), (790, 406848), (815, 394368), (832, 386310), (948, 339040), (960, 334802), (978, 328640), (1027, 312960), (1040, 309048), (1185, 271232), (1248, 257540), (1264, 254280), (1304, 246480), (1560, 206032), (1580, 203424), (1630, 197184), (1664, 193155), (1896, 169520), (1920, 167401), (1956, 164320), (2054, 156480), (2080, 154524), (2119, 151680), (2370, 135616), (2445, 131456), (2496, 128770), (2528, 127140), (2608, 123240), (3081, 104320), (3120, 103016), (3160, 101712), (3260, 98592), (3792, 84760), (3912, 82160), (4108, 78240), (4160, 77262), (4238, 75840), (4740, 67808), (4890, 65728), (4992, 64385), (5056, 63570), (5135, 62592), (5216, 61620), (6162, 52160), (6240, 51508), (6320, 50856), (6357, 50560), (6520, 49296), (7584, 42380), (7824, 41080), (8216, 39120), (8320, 38631), (8476, 37920), (9480, 33904), (9780, 32864), (10112, 31785), (10270, 31296), (10432, 30810), (10595, 30336), (12324, 26080), (12480, 25754), (12640, 25428), (12714, 25280), (12877, 24960), (13040, 24648), (15168, 21190), (15405, 20864), (15648, 20540), (16432, 19560), (16952, 18960)]