79720880

素因数分解:

$2^4\times 5^1\times {\mathrm{996511}}^1$

素因数の和:996524

約数の個数: 20

約数和(自身を含む): 185351232

約数和(自身を除く): 105630352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 996511, 1993022, 3986044, 4982555, 7972088, 9965110, 15944176, 19930220, 39860440, 79720880]

約数ペア:

[(1, 79720880), (2, 39860440), (4, 19930220), (5, 15944176), (8, 9965110), (10, 7972088), (16, 4982555), (20, 3986044), (40, 1993022), (80, 996511)]