138961010

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{30949}}^1$

素因数の和:31405

約数の個数: 16

約数和(自身を含む): 250695000

約数和(自身を除く): 111733990

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 30949, 61898, 154745, 309490, 13896101, 27792202, 69480505, 138961010]

約数ペア:

[(1, 138961010), (2, 69480505), (5, 27792202), (10, 13896101), (449, 309490), (898, 154745), (2245, 61898), (4490, 30949)]