1280813080

素因数分解:

$2^3\times 5^1\times {\mathrm{32020327}}^1$

素因数の和:32020338

約数の個数: 16

約数和(自身を含む): 2881829520

約数和(自身を除く): 1601016440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 32020327, 64040654, 128081308, 160101635, 256162616, 320203270, 640406540, 1280813080]

約数ペア:

[(1, 1280813080), (2, 640406540), (4, 320203270), (5, 256162616), (8, 160101635), (10, 128081308), (20, 64040654), (40, 32020327)]