79666120

素因数分解:

$2^3\times 5^1\times {\mathrm{1991653}}^1$

素因数の和:1991664

約数の個数: 16

約数和(自身を含む): 179248860

約数和(自身を除く): 99582740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1991653, 3983306, 7966612, 9958265, 15933224, 19916530, 39833060, 79666120]

約数ペア:

[(1, 79666120), (2, 39833060), (4, 19916530), (5, 15933224), (8, 9958265), (10, 7966612), (20, 3983306), (40, 1991653)]