12881800

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{2221}}^1$

素因数の和:2266

約数の個数: 48

約数和(自身を含む): 30996900

約数和(自身を除く): 18115100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2221, 2900, 4442, 5800, 8884, 11105, 17768, 22210, 44420, 55525, 64409, 88840, 111050, 128818, 222100, 257636, 322045, 444200, 515272, 644090, 1288180, 1610225, 2576360, 3220450, 6440900, 12881800]

約数ペア:

[(1, 12881800), (2, 6440900), (4, 3220450), (5, 2576360), (8, 1610225), (10, 1288180), (20, 644090), (25, 515272), (29, 444200), (40, 322045), (50, 257636), (58, 222100), (100, 128818), (116, 111050), (145, 88840), (200, 64409), (232, 55525), (290, 44420), (580, 22210), (725, 17768), (1160, 11105), (1450, 8884), (2221, 5800), (2900, 4442)]