201664210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{20599}}^1$

素因数の和:20706

約数の個数: 32

約数和(自身を含む): 400464000

約数和(自身を除く): 198799790

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 9790, 20599, 41198, 102995, 205990, 226589, 453178, 1132945, 1833311, 2265890, 3666622, 9166555, 18333110, 20166421, 40332842, 100832105, 201664210]

約数ペア:

[(1, 201664210), (2, 100832105), (5, 40332842), (10, 20166421), (11, 18333110), (22, 9166555), (55, 3666622), (89, 2265890), (110, 1833311), (178, 1132945), (445, 453178), (890, 226589), (979, 205990), (1958, 102995), (4895, 41198), (9790, 20599)]