79992680

素因数分解:

$2^3\times 5^1\times {\mathrm{1999817}}^1$

素因数の和:1999828

約数の個数: 16

約数和(自身を含む): 179983620

約数和(自身を除く): 99990940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1999817, 3999634, 7999268, 9999085, 15998536, 19998170, 39996340, 79992680]

約数ペア:

[(1, 79992680), (2, 39996340), (4, 19998170), (5, 15998536), (8, 9999085), (10, 7999268), (20, 3999634), (40, 1999817)]