55560880

素因数分解:

$2^4\times 5^1\times {\mathrm{694511}}^1$

素因数の和:694524

約数の個数: 20

約数和(自身を含む): 129179232

約数和(自身を除く): 73618352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 694511, 1389022, 2778044, 3472555, 5556088, 6945110, 11112176, 13890220, 27780440, 55560880]

約数ペア:

[(1, 55560880), (2, 27780440), (4, 13890220), (5, 11112176), (8, 6945110), (10, 5556088), (16, 3472555), (20, 2778044), (40, 1389022), (80, 694511)]