8981140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{64151}}^1$

素因数の和:64167

約数の個数: 24

約数和(自身を含む): 21555072

約数和(自身を除く): 12573932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 64151, 128302, 256604, 320755, 449057, 641510, 898114, 1283020, 1796228, 2245285, 4490570, 8981140]

約数ペア:

[(1, 8981140), (2, 4490570), (4, 2245285), (5, 1796228), (7, 1283020), (10, 898114), (14, 641510), (20, 449057), (28, 320755), (35, 256604), (70, 128302), (140, 64151)]