79639240

素因数分解:

$2^3\times 5^1\times {\mathrm{1990981}}^1$

素因数の和:1990992

約数の個数: 16

約数和(自身を含む): 179188380

約数和(自身を除く): 99549140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1990981, 3981962, 7963924, 9954905, 15927848, 19909810, 39819620, 79639240]

約数ペア:

[(1, 79639240), (2, 39819620), (4, 19909810), (5, 15927848), (8, 9954905), (10, 7963924), (20, 3981962), (40, 1990981)]