25960066520

素因数分解:

$2^3\times 5^1\times {\mathrm{649001663}}^1$

素因数の和:649001674

約数の個数: 16

約数和(自身を含む): 58410149760

約数和(自身を除く): 32450083240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 649001663, 1298003326, 2596006652, 3245008315, 5192013304, 6490016630, 12980033260, 25960066520]

約数ペア:

[(1, 25960066520), (2, 12980033260), (4, 6490016630), (5, 5192013304), (8, 3245008315), (10, 2596006652), (20, 1298003326), (40, 649001663)]