18988360

素因数分解:

$2^3\times 5^1\times {\mathrm{474709}}^1$

素因数の和:474720

約数の個数: 16

約数和(自身を含む): 42723900

約数和(自身を除く): 23735540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 474709, 949418, 1898836, 2373545, 3797672, 4747090, 9494180, 18988360]

約数ペア:

[(1, 18988360), (2, 9494180), (4, 4747090), (5, 3797672), (8, 2373545), (10, 1898836), (20, 949418), (40, 474709)]