51972080

素因数分解:

$2^4\times 5^1\times {\mathrm{649651}}^1$

素因数の和:649664

約数の個数: 20

約数和(自身を含む): 120835272

約数和(自身を除く): 68863192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649651, 1299302, 2598604, 3248255, 5197208, 6496510, 10394416, 12993020, 25986040, 51972080]

約数ペア:

[(1, 51972080), (2, 25986040), (4, 12993020), (5, 10394416), (8, 6496510), (10, 5197208), (16, 3248255), (20, 2598604), (40, 1299302), (80, 649651)]