79645880

素因数分解:

$2^3\times 5^1\times {\mathrm{1991147}}^1$

素因数の和:1991158

約数の個数: 16

約数和(自身を含む): 179203320

約数和(自身を除く): 99557440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1991147, 3982294, 7964588, 9955735, 15929176, 19911470, 39822940, 79645880]

約数ペア:

[(1, 79645880), (2, 39822940), (4, 19911470), (5, 15929176), (8, 9955735), (10, 7964588), (20, 3982294), (40, 1991147)]