81347185

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^2$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 102700224

約数和(自身を除く): 21353039

約数列:

[1, 5, 43, 71, 73, 215, 355, 365, 3053, 3139, 5183, 5329, 15265, 15695, 25915, 26645, 222869, 229147, 378359, 1114345, 1145735, 1891795, 16269437, 81347185]

約数ペア:

[(1, 81347185), (5, 16269437), (43, 1891795), (71, 1145735), (73, 1114345), (215, 378359), (355, 229147), (365, 222869), (3053, 26645), (3139, 25915), (5183, 15695), (5329, 15265)]