1555367420

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{220307}}^1$

素因数の和:220669

約数の個数: 24

約数和(自身を含む): 3275539344

約数和(自身を除く): 1720171924

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 3530, 7060, 220307, 440614, 881228, 1101535, 2203070, 4406140, 77768371, 155536742, 311073484, 388841855, 777683710, 1555367420]

約数ペア:

[(1, 1555367420), (2, 777683710), (4, 388841855), (5, 311073484), (10, 155536742), (20, 77768371), (353, 4406140), (706, 2203070), (1412, 1101535), (1765, 881228), (3530, 440614), (7060, 220307)]