91690280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{208387}}^1$

素因数の和:208409

約数の個数: 32

約数和(自身を含む): 225059040

約数和(自身を除く): 133368760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 208387, 416774, 833548, 1041935, 1667096, 2083870, 2292257, 4167740, 4584514, 8335480, 9169028, 11461285, 18338056, 22922570, 45845140, 91690280]

約数ペア:

[(1, 91690280), (2, 45845140), (4, 22922570), (5, 18338056), (8, 11461285), (10, 9169028), (11, 8335480), (20, 4584514), (22, 4167740), (40, 2292257), (44, 2083870), (55, 1667096), (88, 1041935), (110, 833548), (220, 416774), (440, 208387)]