398889412

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{717427}}^1$

素因数の和:717570

約数の個数: 12

約数和(自身を含む): 703079440

約数和(自身を除く): 304190028

約数列:

[1, 2, 4, 139, 278, 556, 717427, 1434854, 2869708, 99722353, 199444706, 398889412]

約数ペア:

[(1, 398889412), (2, 199444706), (4, 99722353), (139, 2869708), (278, 1434854), (556, 717427)]