18262940

素因数分解:

$2^2\times 5^1\times {\mathrm{743}}^1\times {\mathrm{1229}}^1$

素因数の和:1981

約数の個数: 24

約数和(自身を含む): 38435040

約数和(自身を除く): 20172100

約数列:

[1, 2, 4, 5, 10, 20, 743, 1229, 1486, 2458, 2972, 3715, 4916, 6145, 7430, 12290, 14860, 24580, 913147, 1826294, 3652588, 4565735, 9131470, 18262940]

約数ペア:

[(1, 18262940), (2, 9131470), (4, 4565735), (5, 3652588), (10, 1826294), (20, 913147), (743, 24580), (1229, 14860), (1486, 12290), (2458, 7430), (2972, 6145), (3715, 4916)]