19178740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{136991}}^1$

素因数の和:137007

約数の個数: 24

約数和(自身を含む): 46029312

約数和(自身を除く): 26850572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 136991, 273982, 547964, 684955, 958937, 1369910, 1917874, 2739820, 3835748, 4794685, 9589370, 19178740]

約数ペア:

[(1, 19178740), (2, 9589370), (4, 4794685), (5, 3835748), (7, 2739820), (10, 1917874), (14, 1369910), (20, 958937), (28, 684955), (35, 547964), (70, 273982), (140, 136991)]