18021610

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20249}}^1$

素因数の和:20345

約数の個数: 16

約数和(自身を含む): 32805000

約数和(自身を除く): 14783390

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 20249, 40498, 101245, 202490, 1802161, 3604322, 9010805, 18021610]

約数ペア:

[(1, 18021610), (2, 9010805), (5, 3604322), (10, 1802161), (89, 202490), (178, 101245), (445, 40498), (890, 20249)]