18001540

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4523}}^1$

素因数の和:4731

約数の個数: 24

約数和(自身を含む): 38001600

約数和(自身を除く): 20000060

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4523, 9046, 18092, 22615, 45230, 90460, 900077, 1800154, 3600308, 4500385, 9000770, 18001540]

約数ペア:

[(1, 18001540), (2, 9000770), (4, 4500385), (5, 3600308), (10, 1800154), (20, 900077), (199, 90460), (398, 45230), (796, 22615), (995, 18092), (1990, 9046), (3980, 4523)]