18723440

素因数分解:

$2^4\times 5^1\times {\mathrm{234043}}^1$

素因数の和:234056

約数の個数: 20

約数和(自身を含む): 43532184

約数和(自身を除く): 24808744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 234043, 468086, 936172, 1170215, 1872344, 2340430, 3744688, 4680860, 9361720, 18723440]

約数ペア:

[(1, 18723440), (2, 9361720), (4, 4680860), (5, 3744688), (8, 2340430), (10, 1872344), (16, 1170215), (20, 936172), (40, 468086), (80, 234043)]