2001560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4549}}^1$

素因数の和:4571

約数の個数: 32

約数和(自身を含む): 4914000

約数和(自身を除く): 2912440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 4549, 9098, 18196, 22745, 36392, 45490, 50039, 90980, 100078, 181960, 200156, 250195, 400312, 500390, 1000780, 2001560]

約数ペア:

[(1, 2001560), (2, 1000780), (4, 500390), (5, 400312), (8, 250195), (10, 200156), (11, 181960), (20, 100078), (22, 90980), (40, 50039), (44, 45490), (55, 36392), (88, 22745), (110, 18196), (220, 9098), (440, 4549)]