81472988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{5387}}^1$

素因数の和:5609

約数の個数: 24

約数和(自身を含む): 150864000

約数和(自身を除く): 69391012

約数列:

[1, 2, 4, 19, 38, 76, 199, 398, 796, 3781, 5387, 7562, 10774, 15124, 21548, 102353, 204706, 409412, 1072013, 2144026, 4288052, 20368247, 40736494, 81472988]

約数ペア:

[(1, 81472988), (2, 40736494), (4, 20368247), (19, 4288052), (38, 2144026), (76, 1072013), (199, 409412), (398, 204706), (796, 102353), (3781, 21548), (5387, 15124), (7562, 10774)]