79145680

素因数分解:

$2^4\times 5^1\times {\mathrm{989321}}^1$

素因数の和:989334

約数の個数: 20

約数和(自身を含む): 184013892

約数和(自身を除く): 104868212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 989321, 1978642, 3957284, 4946605, 7914568, 9893210, 15829136, 19786420, 39572840, 79145680]

約数ペア:

[(1, 79145680), (2, 39572840), (4, 19786420), (5, 15829136), (8, 9893210), (10, 7914568), (16, 4946605), (20, 3957284), (40, 1978642), (80, 989321)]