255490640

素因数分解:

$2^4\times 5^1\times {\mathrm{3193633}}^1$

素因数の和:3193646

約数の個数: 20

約数和(自身を含む): 594015924

約数和(自身を除く): 338525284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3193633, 6387266, 12774532, 15968165, 25549064, 31936330, 51098128, 63872660, 127745320, 255490640]

約数ペア:

[(1, 255490640), (2, 127745320), (4, 63872660), (5, 51098128), (8, 31936330), (10, 25549064), (16, 15968165), (20, 12774532), (40, 6387266), (80, 3193633)]