128936540

素因数分解:

$2^2\times 5^1\times {\mathrm{877}}^1\times {\mathrm{7351}}^1$

素因数の和:8237

約数の個数: 24

約数和(自身を含む): 271112352

約数和(自身を除く): 142175812

約数列:

[1, 2, 4, 5, 10, 20, 877, 1754, 3508, 4385, 7351, 8770, 14702, 17540, 29404, 36755, 73510, 147020, 6446827, 12893654, 25787308, 32234135, 64468270, 128936540]

約数ペア:

[(1, 128936540), (2, 64468270), (4, 32234135), (5, 25787308), (10, 12893654), (20, 6446827), (877, 147020), (1754, 73510), (3508, 36755), (4385, 29404), (7351, 17540), (8770, 14702)]