18930580

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1039}}^1$

素因数の和:1959

約数の個数: 24

約数和(自身を含む): 39836160

約数和(自身を除く): 20905580

約数列:

[1, 2, 4, 5, 10, 20, 911, 1039, 1822, 2078, 3644, 4156, 4555, 5195, 9110, 10390, 18220, 20780, 946529, 1893058, 3786116, 4732645, 9465290, 18930580]

約数ペア:

[(1, 18930580), (2, 9465290), (4, 4732645), (5, 3786116), (10, 1893058), (20, 946529), (911, 20780), (1039, 18220), (1822, 10390), (2078, 9110), (3644, 5195), (4156, 4555)]