3305000

素因数分解:

$2^3\times 5^4\times {\mathrm{661}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 7755330

約数和(自身を除く): 4450330

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 661, 1000, 1250, 1322, 2500, 2644, 3305, 5000, 5288, 6610, 13220, 16525, 26440, 33050, 66100, 82625, 132200, 165250, 330500, 413125, 661000, 826250, 1652500, 3305000]

約数ペア:

[(1, 3305000), (2, 1652500), (4, 826250), (5, 661000), (8, 413125), (10, 330500), (20, 165250), (25, 132200), (40, 82625), (50, 66100), (100, 33050), (125, 26440), (200, 16525), (250, 13220), (500, 6610), (625, 5288), (661, 5000), (1000, 3305), (1250, 2644), (1322, 2500)]