79239640

素因数分解:

$2^3\times 5^1\times {\mathrm{1980991}}^1$

素因数の和:1981002

約数の個数: 16

約数和(自身を含む): 178289280

約数和(自身を除く): 99049640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1980991, 3961982, 7923964, 9904955, 15847928, 19809910, 39619820, 79239640]

約数ペア:

[(1, 79239640), (2, 39619820), (4, 19809910), (5, 15847928), (8, 9904955), (10, 7923964), (20, 3961982), (40, 1980991)]