1262020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 2683800

約数和(自身を除く): 1421780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 709, 890, 1418, 1780, 2836, 3545, 7090, 14180, 63101, 126202, 252404, 315505, 631010, 1262020]

約数ペア:

[(1, 1262020), (2, 631010), (4, 315505), (5, 252404), (10, 126202), (20, 63101), (89, 14180), (178, 7090), (356, 3545), (445, 2836), (709, 1780), (890, 1418)]