18536780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{48781}}^1$

素因数の和:48809

約数の個数: 24

約数和(自身を含む): 40976880

約数和(自身を除く): 22440100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 48781, 97562, 195124, 243905, 487810, 926839, 975620, 1853678, 3707356, 4634195, 9268390, 18536780]

約数ペア:

[(1, 18536780), (2, 9268390), (4, 4634195), (5, 3707356), (10, 1853678), (19, 975620), (20, 926839), (38, 487810), (76, 243905), (95, 195124), (190, 97562), (380, 48781)]