18900320

素因数分解:

$2^5\times 5^1\times {\mathrm{118127}}^1$

素因数の和:118142

約数の個数: 24

約数和(自身を含む): 44652384

約数和(自身を除く): 25752064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 118127, 236254, 472508, 590635, 945016, 1181270, 1890032, 2362540, 3780064, 4725080, 9450160, 18900320]

約数ペア:

[(1, 18900320), (2, 9450160), (4, 4725080), (5, 3780064), (8, 2362540), (10, 1890032), (16, 1181270), (20, 945016), (32, 590635), (40, 472508), (80, 236254), (160, 118127)]