55147280

素因数分解:

$2^4\times 5^1\times {\mathrm{689341}}^1$

素因数の和:689354

約数の個数: 20

約数和(自身を含む): 128217612

約数和(自身を除く): 73070332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 689341, 1378682, 2757364, 3446705, 5514728, 6893410, 11029456, 13786820, 27573640, 55147280]

約数ペア:

[(1, 55147280), (2, 27573640), (4, 13786820), (5, 11029456), (8, 6893410), (10, 5514728), (16, 3446705), (20, 2757364), (40, 1378682), (80, 689341)]