52100020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563}}^1\times {\mathrm{661}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 125451648

約数和(自身を除く): 73351628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563, 661, 1126, 1322, 2252, 2644, 2815, 3305, 3941, 4627, 5630, 6610, 7882, 9254, 11260, 13220, 15764, 18508, 19705, 23135, 39410, 46270, 78820, 92540, 372143, 744286, 1488572, 1860715, 2605001, 3721430, 5210002, 7442860, 10420004, 13025005, 26050010, 52100020]

約数ペア:

[(1, 52100020), (2, 26050010), (4, 13025005), (5, 10420004), (7, 7442860), (10, 5210002), (14, 3721430), (20, 2605001), (28, 1860715), (35, 1488572), (70, 744286), (140, 372143), (563, 92540), (661, 78820), (1126, 46270), (1322, 39410), (2252, 23135), (2644, 19705), (2815, 18508), (3305, 15764), (3941, 13220), (4627, 11260), (5630, 9254), (6610, 7882)]