18212200

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2221}}^1$

素因数の和:2278

約数の個数: 48

約数和(自身を含む): 43395660

約数和(自身を除く): 25183460

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2221, 4100, 4442, 8200, 8884, 11105, 17768, 22210, 44420, 55525, 88840, 91061, 111050, 182122, 222100, 364244, 444200, 455305, 728488, 910610, 1821220, 2276525, 3642440, 4553050, 9106100, 18212200]

約数ペア:

[(1, 18212200), (2, 9106100), (4, 4553050), (5, 3642440), (8, 2276525), (10, 1821220), (20, 910610), (25, 728488), (40, 455305), (41, 444200), (50, 364244), (82, 222100), (100, 182122), (164, 111050), (200, 91061), (205, 88840), (328, 55525), (410, 44420), (820, 22210), (1025, 17768), (1640, 11105), (2050, 8884), (2221, 8200), (4100, 4442)]