66906520

素因数分解:

$2^3\times 5^1\times {\mathrm{1672663}}^1$

素因数の和:1672674

約数の個数: 16

約数和(自身を含む): 150539760

約数和(自身を除く): 83633240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1672663, 3345326, 6690652, 8363315, 13381304, 16726630, 33453260, 66906520]

約数ペア:

[(1, 66906520), (2, 33453260), (4, 16726630), (5, 13381304), (8, 8363315), (10, 6690652), (20, 3345326), (40, 1672663)]