1990280

素因数分解:

$2^3\times 5^1\times {\mathrm{49757}}^1$

素因数の和:49768

約数の個数: 16

約数和(自身を含む): 4478220

約数和(自身を除く): 2487940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49757, 99514, 199028, 248785, 398056, 497570, 995140, 1990280]

約数ペア:

[(1, 1990280), (2, 995140), (4, 497570), (5, 398056), (8, 248785), (10, 199028), (20, 99514), (40, 49757)]