20419270

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22943}}^1$

素因数の和:23039

約数の個数: 16

約数和(自身を含む): 37169280

約数和(自身を除く): 16750010

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22943, 45886, 114715, 229430, 2041927, 4083854, 10209635, 20419270]

約数ペア:

[(1, 20419270), (2, 10209635), (5, 4083854), (10, 2041927), (89, 229430), (178, 114715), (445, 45886), (890, 22943)]