20776795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 28268352

約数和(自身を除く): 7491557

約数列:

[1, 5, 13, 37, 53, 65, 163, 185, 265, 481, 689, 815, 1961, 2119, 2405, 3445, 6031, 8639, 9805, 10595, 25493, 30155, 43195, 78403, 112307, 127465, 319643, 392015, 561535, 1598215, 4155359, 20776795]

約数ペア:

[(1, 20776795), (5, 4155359), (13, 1598215), (37, 561535), (53, 392015), (65, 319643), (163, 127465), (185, 112307), (265, 78403), (481, 43195), (689, 30155), (815, 25493), (1961, 10595), (2119, 9805), (2405, 8639), (3445, 6031)]