101811280

素因数分解:

$2^4\times 5^1\times {\mathrm{1272641}}^1$

素因数の和:1272654

約数の個数: 20

約数和(自身を含む): 236711412

約数和(自身を除く): 134900132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1272641, 2545282, 5090564, 6363205, 10181128, 12726410, 20362256, 25452820, 50905640, 101811280]

約数ペア:

[(1, 101811280), (2, 50905640), (4, 25452820), (5, 20362256), (8, 12726410), (10, 10181128), (16, 6363205), (20, 5090564), (40, 2545282), (80, 1272641)]