20120804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1061}}^1$

素因数の和:1507

約数の個数: 24

約数和(自身を含む): 38537856

約数和(自身を除く): 18417052

約数列:

[1, 2, 4, 11, 22, 44, 431, 862, 1061, 1724, 2122, 4244, 4741, 9482, 11671, 18964, 23342, 46684, 457291, 914582, 1829164, 5030201, 10060402, 20120804]

約数ペア:

[(1, 20120804), (2, 10060402), (4, 5030201), (11, 1829164), (22, 914582), (44, 457291), (431, 46684), (862, 23342), (1061, 18964), (1724, 11671), (2122, 9482), (4244, 4741)]