15478220

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3889}}^1$

素因数の和:4097

約数の個数: 24

約数和(自身を含む): 32676000

約数和(自身を除く): 17197780

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3889, 3980, 7778, 15556, 19445, 38890, 77780, 773911, 1547822, 3095644, 3869555, 7739110, 15478220]

約数ペア:

[(1, 15478220), (2, 7739110), (4, 3869555), (5, 3095644), (10, 1547822), (20, 773911), (199, 77780), (398, 38890), (796, 19445), (995, 15556), (1990, 7778), (3889, 3980)]