55072880

素因数分解:

$2^4\times 5^1\times {\mathrm{688411}}^1$

素因数の和:688424

約数の個数: 20

約数和(自身を含む): 128044632

約数和(自身を除く): 72971752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 688411, 1376822, 2753644, 3442055, 5507288, 6884110, 11014576, 13768220, 27536440, 55072880]

約数ペア:

[(1, 55072880), (2, 27536440), (4, 13768220), (5, 11014576), (8, 6884110), (10, 5507288), (16, 3442055), (20, 2753644), (40, 1376822), (80, 688411)]