65938760

素因数分解:

$2^3\times 5^1\times {\mathrm{823}}^1\times {\mathrm{2003}}^1$

素因数の和:2837

約数の個数: 32

約数和(自身を含む): 148616640

約数和(自身を除く): 82677880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 823, 1646, 2003, 3292, 4006, 4115, 6584, 8012, 8230, 10015, 16024, 16460, 20030, 32920, 40060, 80120, 1648469, 3296938, 6593876, 8242345, 13187752, 16484690, 32969380, 65938760]

約数ペア:

[(1, 65938760), (2, 32969380), (4, 16484690), (5, 13187752), (8, 8242345), (10, 6593876), (20, 3296938), (40, 1648469), (823, 80120), (1646, 40060), (2003, 32920), (3292, 20030), (4006, 16460), (4115, 16024), (6584, 10015), (8012, 8230)]