80915440

素因数分解:

$2^4\times 5^1\times {\mathrm{1011443}}^1$

素因数の和:1011456

約数の個数: 20

約数和(自身を含む): 188128584

約数和(自身を除く): 107213144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1011443, 2022886, 4045772, 5057215, 8091544, 10114430, 16183088, 20228860, 40457720, 80915440]

約数ペア:

[(1, 80915440), (2, 40457720), (4, 20228860), (5, 16183088), (8, 10114430), (10, 8091544), (16, 5057215), (20, 4045772), (40, 2022886), (80, 1011443)]