4442000

素因数分解:

$2^4\times 5^3\times {\mathrm{2221}}^1$

素因数の和:2244

約数の個数: 40

約数和(自身を含む): 10745592

約数和(自身を除く): 6303592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 2221, 4442, 8884, 11105, 17768, 22210, 35536, 44420, 55525, 88840, 111050, 177680, 222100, 277625, 444200, 555250, 888400, 1110500, 2221000, 4442000]

約数ペア:

[(1, 4442000), (2, 2221000), (4, 1110500), (5, 888400), (8, 555250), (10, 444200), (16, 277625), (20, 222100), (25, 177680), (40, 111050), (50, 88840), (80, 55525), (100, 44420), (125, 35536), (200, 22210), (250, 17768), (400, 11105), (500, 8884), (1000, 4442), (2000, 2221)]