12690640

素因数分解:

$2^4\times 5^1\times {\mathrm{158633}}^1$

素因数の和:158646

約数の個数: 20

約数和(自身を含む): 29505924

約数和(自身を除く): 16815284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 158633, 317266, 634532, 793165, 1269064, 1586330, 2538128, 3172660, 6345320, 12690640]

約数ペア:

[(1, 12690640), (2, 6345320), (4, 3172660), (5, 2538128), (8, 1586330), (10, 1269064), (16, 793165), (20, 634532), (40, 317266), (80, 158633)]