66502840

素因数分解:

$2^3\times 5^1\times {\mathrm{1662571}}^1$

素因数の和:1662582

約数の個数: 16

約数和(自身を含む): 149631480

約数和(自身を除く): 83128640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1662571, 3325142, 6650284, 8312855, 13300568, 16625710, 33251420, 66502840]

約数ペア:

[(1, 66502840), (2, 33251420), (4, 16625710), (5, 13300568), (8, 8312855), (10, 6650284), (20, 3325142), (40, 1662571)]