18509990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2633}}^1$

素因数の和:2696

約数の個数: 32

約数和(自身を含む): 36033120

約数和(自身を除く): 17523130

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 370, 703, 1406, 2633, 3515, 5266, 7030, 13165, 26330, 50027, 97421, 100054, 194842, 250135, 487105, 500270, 974210, 1850999, 3701998, 9254995, 18509990]

約数ペア:

[(1, 18509990), (2, 9254995), (5, 3701998), (10, 1850999), (19, 974210), (37, 500270), (38, 487105), (74, 250135), (95, 194842), (185, 100054), (190, 97421), (370, 50027), (703, 26330), (1406, 13165), (2633, 7030), (3515, 5266)]