2489620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17783}}^1$

素因数の和:17799

約数の個数: 24

約数和(自身を含む): 5975424

約数和(自身を除く): 3485804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 17783, 35566, 71132, 88915, 124481, 177830, 248962, 355660, 497924, 622405, 1244810, 2489620]

約数ペア:

[(1, 2489620), (2, 1244810), (4, 622405), (5, 497924), (7, 355660), (10, 248962), (14, 177830), (20, 124481), (28, 88915), (35, 71132), (70, 35566), (140, 17783)]