5128840

素因数分解:

$2^3\times 5^1\times {\mathrm{128221}}^1$

素因数の和:128232

約数の個数: 16

約数和(自身を含む): 11539980

約数和(自身を除く): 6411140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 128221, 256442, 512884, 641105, 1025768, 1282210, 2564420, 5128840]

約数ペア:

[(1, 5128840), (2, 2564420), (4, 1282210), (5, 1025768), (8, 641105), (10, 512884), (20, 256442), (40, 128221)]