51970640

素因数分解:

$2^4\times 5^1\times {\mathrm{649633}}^1$

素因数の和:649646

約数の個数: 20

約数和(自身を含む): 120831924

約数和(自身を除く): 68861284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649633, 1299266, 2598532, 3248165, 5197064, 6496330, 10394128, 12992660, 25985320, 51970640]

約数ペア:

[(1, 51970640), (2, 25985320), (4, 12992660), (5, 10394128), (8, 6496330), (10, 5197064), (16, 3248165), (20, 2598532), (40, 1299266), (80, 649633)]