20370040

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1627}}^1$

素因数の和:1951

約数の個数: 32

約数和(自身を含む): 46007280

約数和(自身を除く): 25637240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 1627, 2504, 3130, 3254, 6260, 6508, 8135, 12520, 13016, 16270, 32540, 65080, 509251, 1018502, 2037004, 2546255, 4074008, 5092510, 10185020, 20370040]

約数ペア:

[(1, 20370040), (2, 10185020), (4, 5092510), (5, 4074008), (8, 2546255), (10, 2037004), (20, 1018502), (40, 509251), (313, 65080), (626, 32540), (1252, 16270), (1565, 13016), (1627, 12520), (2504, 8135), (3130, 6508), (3254, 6260)]