20175572

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 35962080

約数和(自身を除く): 15786508

約数列:

[1, 2, 4, 131, 139, 262, 277, 278, 524, 554, 556, 1108, 18209, 36287, 36418, 38503, 72574, 72836, 77006, 145148, 154012, 5043893, 10087786, 20175572]

約数ペア:

[(1, 20175572), (2, 10087786), (4, 5043893), (131, 154012), (139, 145148), (262, 77006), (277, 72836), (278, 72574), (524, 38503), (554, 36418), (556, 36287), (1108, 18209)]