81278228

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{18797}}^1$

素因数の和:18871

約数の個数: 24

約数和(自身を含む): 151587072

約数和(自身を除く): 70308844

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 188, 1081, 2162, 4324, 18797, 37594, 75188, 432331, 864662, 883459, 1729324, 1766918, 3533836, 20319557, 40639114, 81278228]

約数ペア:

[(1, 81278228), (2, 40639114), (4, 20319557), (23, 3533836), (46, 1766918), (47, 1729324), (92, 883459), (94, 864662), (188, 432331), (1081, 75188), (2162, 37594), (4324, 18797)]