78790480

素因数分解:

$2^4\times 5^1\times {\mathrm{984881}}^1$

素因数の和:984894

約数の個数: 20

約数和(自身を含む): 183188052

約数和(自身を除く): 104397572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 984881, 1969762, 3939524, 4924405, 7879048, 9848810, 15758096, 19697620, 39395240, 78790480]

約数ペア:

[(1, 78790480), (2, 39395240), (4, 19697620), (5, 15758096), (8, 9848810), (10, 7879048), (16, 4924405), (20, 3939524), (40, 1969762), (80, 984881)]