13228840

素因数分解:

$2^3\times 5^1\times {\mathrm{330721}}^1$

素因数の和:330732

約数の個数: 16

約数和(自身を含む): 29764980

約数和(自身を除く): 16536140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 330721, 661442, 1322884, 1653605, 2645768, 3307210, 6614420, 13228840]

約数ペア:

[(1, 13228840), (2, 6614420), (4, 3307210), (5, 2645768), (8, 1653605), (10, 1322884), (20, 661442), (40, 330721)]