18906520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24877}}^1$

素因数の和:24907

約数の個数: 32

約数和(自身を含む): 44780400

約数和(自身を除く): 25873880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 24877, 49754, 99508, 124385, 199016, 248770, 472663, 497540, 945326, 995080, 1890652, 2363315, 3781304, 4726630, 9453260, 18906520]

約数ペア:

[(1, 18906520), (2, 9453260), (4, 4726630), (5, 3781304), (8, 2363315), (10, 1890652), (19, 995080), (20, 945326), (38, 497540), (40, 472663), (76, 248770), (95, 199016), (152, 124385), (190, 99508), (380, 49754), (760, 24877)]