78087440

素因数分解:

$2^4\times 5^1\times {\mathrm{976093}}^1$

素因数の和:976106

約数の個数: 20

約数和(自身を含む): 181553484

約数和(自身を除く): 103466044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 976093, 1952186, 3904372, 4880465, 7808744, 9760930, 15617488, 19521860, 39043720, 78087440]

約数ペア:

[(1, 78087440), (2, 39043720), (4, 19521860), (5, 15617488), (8, 9760930), (10, 7808744), (16, 4880465), (20, 3904372), (40, 1952186), (80, 976093)]