81987455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{34667}}^1$

素因数の和:34726

約数の個数: 16

約数和(自身を含む): 109828224

約数和(自身を除く): 27840769

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 34667, 173335, 381337, 1490681, 1906685, 7453405, 16397491, 81987455]

約数ペア:

[(1, 81987455), (5, 16397491), (11, 7453405), (43, 1906685), (55, 1490681), (215, 381337), (473, 173335), (2365, 34667)]