20550376

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 48804480

約数和(自身を除く): 28254104

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 73, 77, 88, 146, 154, 292, 308, 457, 511, 584, 616, 803, 914, 1022, 1606, 1828, 2044, 3199, 3212, 3656, 4088, 5027, 5621, 6398, 6424, 10054, 11242, 12796, 20108, 22484, 25592, 33361, 35189, 40216, 44968, 66722, 70378, 133444, 140756, 233527, 266888, 281512, 366971, 467054, 733942, 934108, 1467884, 1868216, 2568797, 2935768, 5137594, 10275188, 20550376]

約数ペア:

[(1, 20550376), (2, 10275188), (4, 5137594), (7, 2935768), (8, 2568797), (11, 1868216), (14, 1467884), (22, 934108), (28, 733942), (44, 467054), (56, 366971), (73, 281512), (77, 266888), (88, 233527), (146, 140756), (154, 133444), (292, 70378), (308, 66722), (457, 44968), (511, 40216), (584, 35189), (616, 33361), (803, 25592), (914, 22484), (1022, 20108), (1606, 12796), (1828, 11242), (2044, 10054), (3199, 6424), (3212, 6398), (3656, 5621), (4088, 5027)]