1021820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2689}}^1$

素因数の和:2717

約数の個数: 24

約数和(自身を含む): 2259600

約数和(自身を除く): 1237780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 2689, 5378, 10756, 13445, 26890, 51091, 53780, 102182, 204364, 255455, 510910, 1021820]

約数ペア:

[(1, 1021820), (2, 510910), (4, 255455), (5, 204364), (10, 102182), (19, 53780), (20, 51091), (38, 26890), (76, 13445), (95, 10756), (190, 5378), (380, 2689)]