642751920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1789}}^1$

素因数の和:2307

約数の個数: 120

約数和(自身を含む): 2164110000

約数和(自身を除く): 1521358080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 499, 720, 998, 1497, 1789, 1996, 2495, 2994, 3578, 3992, 4491, 4990, 5367, 5988, 7156, 7485, 7984, 8945, 8982, 9980, 10734, 11976, 14312, 14970, 16101, 17890, 17964, 19960, 21468, 22455, 23952, 26835, 28624, 29940, 32202, 35780, 35928, 39920, 42936, 44910, 53670, 59880, 64404, 71560, 71856, 80505, 85872, 89820, 107340, 119760, 128808, 143120, 161010, 179640, 214680, 257616, 322020, 359280, 429360, 644040, 892711, 1288080, 1785422, 2678133, 3570844, 4463555, 5356266, 7141688, 8034399, 8927110, 10712532, 13390665, 14283376, 16068798, 17854220, 21425064, 26781330, 32137596, 35708440, 40171995, 42850128, 53562660, 64275192, 71416880, 80343990, 107125320, 128550384, 160687980, 214250640, 321375960, 642751920]

約数ペア:

[(1, 642751920), (2, 321375960), (3, 214250640), (4, 160687980), (5, 128550384), (6, 107125320), (8, 80343990), (9, 71416880), (10, 64275192), (12, 53562660), (15, 42850128), (16, 40171995), (18, 35708440), (20, 32137596), (24, 26781330), (30, 21425064), (36, 17854220), (40, 16068798), (45, 14283376), (48, 13390665), (60, 10712532), (72, 8927110), (80, 8034399), (90, 7141688), (120, 5356266), (144, 4463555), (180, 3570844), (240, 2678133), (360, 1785422), (499, 1288080), (720, 892711), (998, 644040), (1497, 429360), (1789, 359280), (1996, 322020), (2495, 257616), (2994, 214680), (3578, 179640), (3992, 161010), (4491, 143120), (4990, 128808), (5367, 119760), (5988, 107340), (7156, 89820), (7485, 85872), (7984, 80505), (8945, 71856), (8982, 71560), (9980, 64404), (10734, 59880), (11976, 53670), (14312, 44910), (14970, 42936), (16101, 39920), (17890, 35928), (17964, 35780), (19960, 32202), (21468, 29940), (22455, 28624), (23952, 26835)]