2813800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1279}}^1$

素因数の和:1306

約数の個数: 48

約数和(自身を含む): 7142400

約数和(自身を除く): 4328600

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, 1100, 1279, 2200, 2558, 5116, 6395, 10232, 12790, 14069, 25580, 28138, 31975, 51160, 56276, 63950, 70345, 112552, 127900, 140690, 255800, 281380, 351725, 562760, 703450, 1406900, 2813800]

約数ペア:

[(1, 2813800), (2, 1406900), (4, 703450), (5, 562760), (8, 351725), (10, 281380), (11, 255800), (20, 140690), (22, 127900), (25, 112552), (40, 70345), (44, 63950), (50, 56276), (55, 51160), (88, 31975), (100, 28138), (110, 25580), (200, 14069), (220, 12790), (275, 10232), (440, 6395), (550, 5116), (1100, 2558), (1279, 2200)]