642036140

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{115891}}^1$

素因数の和:116177

約数の個数: 24

約数和(自身を含む): 1353154992

約数和(自身を除く): 711118852

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 5540, 115891, 231782, 463564, 579455, 1158910, 2317820, 32101807, 64203614, 128407228, 160509035, 321018070, 642036140]

約数ペア:

[(1, 642036140), (2, 321018070), (4, 160509035), (5, 128407228), (10, 64203614), (20, 32101807), (277, 2317820), (554, 1158910), (1108, 579455), (1385, 463564), (2770, 231782), (5540, 115891)]