81278455

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{1823}}^1$

素因数の和:2106

約数の個数: 16

約数和(自身を含む): 100641024

約数和(自身を除く): 19362569

約数列:

[1, 5, 37, 185, 241, 1205, 1823, 8917, 9115, 44585, 67451, 337255, 439343, 2196715, 16255691, 81278455]

約数ペア:

[(1, 81278455), (5, 16255691), (37, 2196715), (185, 439343), (241, 337255), (1205, 67451), (1823, 44585), (8917, 9115)]