201553640

素因数分解:

$2^3\times 5^1\times {\mathrm{5038841}}^1$

素因数の和:5038852

約数の個数: 16

約数和(自身を含む): 453495780

約数和(自身を除く): 251942140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5038841, 10077682, 20155364, 25194205, 40310728, 50388410, 100776820, 201553640]

約数ペア:

[(1, 201553640), (2, 100776820), (4, 50388410), (5, 40310728), (8, 25194205), (10, 20155364), (20, 10077682), (40, 5038841)]