127400420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{910003}}^1$

素因数の和:910019

約数の個数: 24

約数和(自身を含む): 305761344

約数和(自身を除く): 178360924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 910003, 1820006, 3640012, 4550015, 6370021, 9100030, 12740042, 18200060, 25480084, 31850105, 63700210, 127400420]

約数ペア:

[(1, 127400420), (2, 63700210), (4, 31850105), (5, 25480084), (7, 18200060), (10, 12740042), (14, 9100030), (20, 6370021), (28, 4550015), (35, 3640012), (70, 1820006), (140, 910003)]