388440080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2699}}^1$

素因数の和:2976

約数の個数: 80

約数和(自身を含む): 1036540800

約数和(自身を除く): 648100720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 257, 280, 514, 560, 1028, 1285, 1799, 2056, 2570, 2699, 3598, 4112, 5140, 5398, 7196, 8995, 10280, 10796, 13495, 14392, 17990, 18893, 20560, 21592, 26990, 28784, 35980, 37786, 43184, 53980, 71960, 75572, 94465, 107960, 143920, 151144, 188930, 215920, 302288, 377860, 693643, 755720, 1387286, 1511440, 2774572, 3468215, 4855501, 5549144, 6936430, 9711002, 11098288, 13872860, 19422004, 24277505, 27745720, 38844008, 48555010, 55491440, 77688016, 97110020, 194220040, 388440080]

約数ペア:

[(1, 388440080), (2, 194220040), (4, 97110020), (5, 77688016), (7, 55491440), (8, 48555010), (10, 38844008), (14, 27745720), (16, 24277505), (20, 19422004), (28, 13872860), (35, 11098288), (40, 9711002), (56, 6936430), (70, 5549144), (80, 4855501), (112, 3468215), (140, 2774572), (257, 1511440), (280, 1387286), (514, 755720), (560, 693643), (1028, 377860), (1285, 302288), (1799, 215920), (2056, 188930), (2570, 151144), (2699, 143920), (3598, 107960), (4112, 94465), (5140, 75572), (5398, 71960), (7196, 53980), (8995, 43184), (10280, 37786), (10796, 35980), (13495, 28784), (14392, 26990), (17990, 21592), (18893, 20560)]