840392

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 1848000

約数和(自身を除く): 1007608

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 349, 602, 698, 1204, 1396, 2408, 2443, 2792, 4886, 9772, 15007, 19544, 30014, 60028, 105049, 120056, 210098, 420196, 840392]

約数ペア:

[(1, 840392), (2, 420196), (4, 210098), (7, 120056), (8, 105049), (14, 60028), (28, 30014), (43, 19544), (56, 15007), (86, 9772), (172, 4886), (301, 2792), (344, 2443), (349, 2408), (602, 1396), (698, 1204)]