28018340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{200131}}^1$

素因数の和:200147

約数の個数: 24

約数和(自身を含む): 67244352

約数和(自身を除く): 39226012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 200131, 400262, 800524, 1000655, 1400917, 2001310, 2801834, 4002620, 5603668, 7004585, 14009170, 28018340]

約数ペア:

[(1, 28018340), (2, 14009170), (4, 7004585), (5, 5603668), (7, 4002620), (10, 2801834), (14, 2001310), (20, 1400917), (28, 1000655), (35, 800524), (70, 400262), (140, 200131)]