78892690

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{17971}}^1$

素因数の和:18417

約数の個数: 16

約数和(自身を含む): 142338240

約数和(自身を除く): 63445550

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 17971, 35942, 89855, 179710, 7889269, 15778538, 39446345, 78892690]

約数ペア:

[(1, 78892690), (2, 39446345), (5, 15778538), (10, 7889269), (439, 179710), (878, 89855), (2195, 35942), (4390, 17971)]