68722780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{490877}}^1$

素因数の和:490893

約数の個数: 24

約数和(自身を含む): 164935008

約数和(自身を除く): 96212228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 490877, 981754, 1963508, 2454385, 3436139, 4908770, 6872278, 9817540, 13744556, 17180695, 34361390, 68722780]

約数ペア:

[(1, 68722780), (2, 34361390), (4, 17180695), (5, 13744556), (7, 9817540), (10, 6872278), (14, 4908770), (20, 3436139), (28, 2454385), (35, 1963508), (70, 981754), (140, 490877)]