978017540

素因数分解:

$2^2\times 5^1\times {\mathrm{48900877}}^1$

素因数の和:48900886

約数の個数: 12

約数和(自身を含む): 2053836876

約数和(自身を除く): 1075819336

約数列:

[1, 2, 4, 5, 10, 20, 48900877, 97801754, 195603508, 244504385, 489008770, 978017540]

約数ペア:

[(1, 978017540), (2, 489008770), (4, 244504385), (5, 195603508), (10, 97801754), (20, 48900877)]