39920020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{911}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 96219648

約数和(自身を除く): 56299628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 626, 911, 1252, 1565, 1822, 2191, 3130, 3644, 4382, 4555, 6260, 6377, 8764, 9110, 10955, 12754, 18220, 21910, 25508, 31885, 43820, 63770, 127540, 285143, 570286, 1140572, 1425715, 1996001, 2851430, 3992002, 5702860, 7984004, 9980005, 19960010, 39920020]

約数ペア:

[(1, 39920020), (2, 19960010), (4, 9980005), (5, 7984004), (7, 5702860), (10, 3992002), (14, 2851430), (20, 1996001), (28, 1425715), (35, 1140572), (70, 570286), (140, 285143), (313, 127540), (626, 63770), (911, 43820), (1252, 31885), (1565, 25508), (1822, 21910), (2191, 18220), (3130, 12754), (3644, 10955), (4382, 9110), (4555, 8764), (6260, 6377)]