28839080

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3623}}^1$

素因数の和:3833

約数の個数: 32

約数和(自身を含む): 65232000

約数和(自身を除く): 36392920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3623, 3980, 7246, 7960, 14492, 18115, 28984, 36230, 72460, 144920, 720977, 1441954, 2883908, 3604885, 5767816, 7209770, 14419540, 28839080]

約数ペア:

[(1, 28839080), (2, 14419540), (4, 7209770), (5, 5767816), (8, 3604885), (10, 2883908), (20, 1441954), (40, 720977), (199, 144920), (398, 72460), (796, 36230), (995, 28984), (1592, 18115), (1990, 14492), (3623, 7960), (3980, 7246)]