18283270

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20543}}^1$

素因数の和:20639

約数の個数: 16

約数和(自身を含む): 33281280

約数和(自身を除く): 14998010

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 20543, 41086, 102715, 205430, 1828327, 3656654, 9141635, 18283270]

約数ペア:

[(1, 18283270), (2, 9141635), (5, 3656654), (10, 1828327), (89, 205430), (178, 102715), (445, 41086), (890, 20543)]