66891580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{477797}}^1$

素因数の和:477813

約数の個数: 24

約数和(自身を含む): 160540128

約数和(自身を除く): 93648548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 477797, 955594, 1911188, 2388985, 3344579, 4777970, 6689158, 9555940, 13378316, 16722895, 33445790, 66891580]

約数ペア:

[(1, 66891580), (2, 33445790), (4, 16722895), (5, 13378316), (7, 9555940), (10, 6689158), (14, 4777970), (20, 3344579), (28, 2388985), (35, 1911188), (70, 955594), (140, 477797)]