18939620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135283}}^1$

素因数の和:135299

約数の個数: 24

約数和(自身を含む): 45455424

約数和(自身を除く): 26515804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135283, 270566, 541132, 676415, 946981, 1352830, 1893962, 2705660, 3787924, 4734905, 9469810, 18939620]

約数ペア:

[(1, 18939620), (2, 9469810), (4, 4734905), (5, 3787924), (7, 2705660), (10, 1893962), (14, 1352830), (20, 946981), (28, 676415), (35, 541132), (70, 270566), (140, 135283)]