18107080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4153}}^1$

素因数の和:4273

約数の個数: 32

約数和(自身を含む): 41124600

約数和(自身を除く): 23017520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4153, 4360, 8306, 16612, 20765, 33224, 41530, 83060, 166120, 452677, 905354, 1810708, 2263385, 3621416, 4526770, 9053540, 18107080]

約数ペア:

[(1, 18107080), (2, 9053540), (4, 4526770), (5, 3621416), (8, 2263385), (10, 1810708), (20, 905354), (40, 452677), (109, 166120), (218, 83060), (436, 41530), (545, 33224), (872, 20765), (1090, 16612), (2180, 8306), (4153, 4360)]