2021800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{919}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 5133600

約数和(自身を除く): 3111800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 919, 1100, 1838, 2200, 3676, 4595, 7352, 9190, 10109, 18380, 20218, 22975, 36760, 40436, 45950, 50545, 80872, 91900, 101090, 183800, 202180, 252725, 404360, 505450, 1010900, 2021800]

約数ペア:

[(1, 2021800), (2, 1010900), (4, 505450), (5, 404360), (8, 252725), (10, 202180), (11, 183800), (20, 101090), (22, 91900), (25, 80872), (40, 50545), (44, 45950), (50, 40436), (55, 36760), (88, 22975), (100, 20218), (110, 18380), (200, 10109), (220, 9190), (275, 7352), (440, 4595), (550, 3676), (919, 2200), (1100, 1838)]