20570810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2003}}^1$

素因数の和:2102

約数の個数: 32

約数和(自身を含む): 40400640

約数和(自身を除く): 19829830

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2003, 2054, 4006, 5135, 10015, 10270, 20030, 26039, 52078, 130195, 158237, 260390, 316474, 791185, 1582370, 2057081, 4114162, 10285405, 20570810]

約数ペア:

[(1, 20570810), (2, 10285405), (5, 4114162), (10, 2057081), (13, 1582370), (26, 791185), (65, 316474), (79, 260390), (130, 158237), (158, 130195), (395, 52078), (790, 26039), (1027, 20030), (2003, 10270), (2054, 10015), (4006, 5135)]