19980910

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{15733}}^1$

素因数の和:15867

約数の個数: 16

約数和(自身を含む): 36251136

約数和(自身を除く): 16270226

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 15733, 31466, 78665, 157330, 1998091, 3996182, 9990455, 19980910]

約数ペア:

[(1, 19980910), (2, 9990455), (5, 3996182), (10, 1998091), (127, 157330), (254, 78665), (635, 31466), (1270, 15733)]