128223208

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{31489}}^1$

素因数の和:32004

約数の個数: 16

約数和(自身を含む): 240898500

約数和(自身を除く): 112675292

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 31489, 62978, 125956, 251912, 16027901, 32055802, 64111604, 128223208]

約数ペア:

[(1, 128223208), (2, 64111604), (4, 32055802), (8, 16027901), (509, 251912), (1018, 125956), (2036, 62978), (4072, 31489)]