55781560

素因数分解:

$2^3\times 5^1\times {\mathrm{1394539}}^1$

素因数の和:1394550

約数の個数: 16

約数和(自身を含む): 125508600

約数和(自身を除く): 69727040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1394539, 2789078, 5578156, 6972695, 11156312, 13945390, 27890780, 55781560]

約数ペア:

[(1, 55781560), (2, 27890780), (4, 13945390), (5, 11156312), (8, 6972695), (10, 5578156), (20, 2789078), (40, 1394539)]