2189480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 4976640

約数和(自身を除く): 2787160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 431, 508, 635, 862, 1016, 1270, 1724, 2155, 2540, 3448, 4310, 5080, 8620, 17240, 54737, 109474, 218948, 273685, 437896, 547370, 1094740, 2189480]

約数ペア:

[(1, 2189480), (2, 1094740), (4, 547370), (5, 437896), (8, 273685), (10, 218948), (20, 109474), (40, 54737), (127, 17240), (254, 8620), (431, 5080), (508, 4310), (635, 3448), (862, 2540), (1016, 2155), (1270, 1724)]