66888680

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{10259}}^1$

素因数の和:10433

約数の個数: 32

約数和(自身を含む): 151437600

約数和(自身を除く): 84548920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 10259, 20518, 41036, 51295, 82072, 102590, 205180, 410360, 1672217, 3344434, 6688868, 8361085, 13377736, 16722170, 33444340, 66888680]

約数ペア:

[(1, 66888680), (2, 33444340), (4, 16722170), (5, 13377736), (8, 8361085), (10, 6688868), (20, 3344434), (40, 1672217), (163, 410360), (326, 205180), (652, 102590), (815, 82072), (1304, 51295), (1630, 41036), (3260, 20518), (6520, 10259)]