89020420

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{10139}}^1$

素因数の和:10587

約数の個数: 24

約数和(自身を含む): 187387200

約数和(自身を除く): 98366780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 10139, 20278, 40556, 50695, 101390, 202780, 4451021, 8902042, 17804084, 22255105, 44510210, 89020420]

約数ペア:

[(1, 89020420), (2, 44510210), (4, 22255105), (5, 17804084), (10, 8902042), (20, 4451021), (439, 202780), (878, 101390), (1756, 50695), (2195, 40556), (4390, 20278), (8780, 10139)]