8128840

素因数分解:

$2^3\times 5^1\times {\mathrm{203221}}^1$

素因数の和:203232

約数の個数: 16

約数和(自身を含む): 18289980

約数和(自身を除く): 10161140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 203221, 406442, 812884, 1016105, 1625768, 2032210, 4064420, 8128840]

約数ペア:

[(1, 8128840), (2, 4064420), (4, 2032210), (5, 1625768), (8, 1016105), (10, 812884), (20, 406442), (40, 203221)]