209626520

素因数分解:

$2^3\times 5^1\times {\mathrm{5240663}}^1$

素因数の和:5240674

約数の個数: 16

約数和(自身を含む): 471659760

約数和(自身を除く): 262033240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5240663, 10481326, 20962652, 26203315, 41925304, 52406630, 104813260, 209626520]

約数ペア:

[(1, 209626520), (2, 104813260), (4, 52406630), (5, 41925304), (8, 26203315), (10, 20962652), (20, 10481326), (40, 5240663)]