280147185

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{87683}}^1$

素因数の和:87765

約数の個数: 24

約数和(自身を含む): 492433344

約数和(自身を除く): 212286159

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 87683, 263049, 438415, 789147, 1315245, 3945735, 6225493, 18676479, 31127465, 56029437, 93382395, 280147185]

約数ペア:

[(1, 280147185), (3, 93382395), (5, 56029437), (9, 31127465), (15, 18676479), (45, 6225493), (71, 3945735), (213, 1315245), (355, 789147), (639, 438415), (1065, 263049), (3195, 87683)]