20120220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{111779}}^1$

素因数の和:111794

約数の個数: 36

約数和(自身を含む): 61031880

約数和(自身を除く): 40911660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 111779, 223558, 335337, 447116, 558895, 670674, 1006011, 1117790, 1341348, 1676685, 2012022, 2235580, 3353370, 4024044, 5030055, 6706740, 10060110, 20120220]

約数ペア:

[(1, 20120220), (2, 10060110), (3, 6706740), (4, 5030055), (5, 4024044), (6, 3353370), (9, 2235580), (10, 2012022), (12, 1676685), (15, 1341348), (18, 1117790), (20, 1006011), (30, 670674), (36, 558895), (45, 447116), (60, 335337), (90, 223558), (180, 111779)]