18438130

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20717}}^1$

素因数の和:20813

約数の個数: 16

約数和(自身を含む): 33563160

約数和(自身を除く): 15125030

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 20717, 41434, 103585, 207170, 1843813, 3687626, 9219065, 18438130]

約数ペア:

[(1, 18438130), (2, 9219065), (5, 3687626), (10, 1843813), (89, 207170), (178, 103585), (445, 41434), (890, 20717)]