161270440

素因数分解:

$2^3\times 5^1\times {\mathrm{4031761}}^1$

素因数の和:4031772

約数の個数: 16

約数和(自身を含む): 362858580

約数和(自身を除く): 201588140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4031761, 8063522, 16127044, 20158805, 32254088, 40317610, 80635220, 161270440]

約数ペア:

[(1, 161270440), (2, 80635220), (4, 40317610), (5, 32254088), (8, 20158805), (10, 16127044), (20, 8063522), (40, 4031761)]