7990480

素因数分解:

$2^4\times 5^1\times {\mathrm{99881}}^1$

素因数の和:99894

約数の個数: 20

約数和(自身を含む): 18578052

約数和(自身を除く): 10587572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 99881, 199762, 399524, 499405, 799048, 998810, 1598096, 1997620, 3995240, 7990480]

約数ペア:

[(1, 7990480), (2, 3995240), (4, 1997620), (5, 1598096), (8, 998810), (10, 799048), (16, 499405), (20, 399524), (40, 199762), (80, 99881)]