20860120

素因数分解:

$2^3\times 5^1\times {\mathrm{521503}}^1$

素因数の和:521514

約数の個数: 16

約数和(自身を含む): 46935360

約数和(自身を除く): 26075240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521503, 1043006, 2086012, 2607515, 4172024, 5215030, 10430060, 20860120]

約数ペア:

[(1, 20860120), (2, 10430060), (4, 5215030), (5, 4172024), (8, 2607515), (10, 2086012), (20, 1043006), (40, 521503)]