66742640

素因数分解:

$2^4\times 5^1\times {\mathrm{834283}}^1$

素因数の和:834296

約数の個数: 20

約数和(自身を含む): 155176824

約数和(自身を除く): 88434184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 834283, 1668566, 3337132, 4171415, 6674264, 8342830, 13348528, 16685660, 33371320, 66742640]

約数ペア:

[(1, 66742640), (2, 33371320), (4, 16685660), (5, 13348528), (8, 8342830), (10, 6674264), (16, 4171415), (20, 3337132), (40, 1668566), (80, 834283)]