68091880

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3467}}^1$

素因数の和:3969

約数の個数: 32

約数和(自身を含む): 153563040

約数和(自身を除く): 85471160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3467, 3928, 4910, 6934, 9820, 13868, 17335, 19640, 27736, 34670, 69340, 138680, 1702297, 3404594, 6809188, 8511485, 13618376, 17022970, 34045940, 68091880]

約数ペア:

[(1, 68091880), (2, 34045940), (4, 17022970), (5, 13618376), (8, 8511485), (10, 6809188), (20, 3404594), (40, 1702297), (491, 138680), (982, 69340), (1964, 34670), (2455, 27736), (3467, 19640), (3928, 17335), (4910, 13868), (6934, 9820)]