18968080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12479}}^1$

素因数の和:12511

約数の個数: 40

約数和(自身を含む): 46425600

約数和(自身を除く): 27457520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12479, 24958, 49916, 62395, 99832, 124790, 199664, 237101, 249580, 474202, 499160, 948404, 998320, 1185505, 1896808, 2371010, 3793616, 4742020, 9484040, 18968080]

約数ペア:

[(1, 18968080), (2, 9484040), (4, 4742020), (5, 3793616), (8, 2371010), (10, 1896808), (16, 1185505), (19, 998320), (20, 948404), (38, 499160), (40, 474202), (76, 249580), (80, 237101), (95, 199664), (152, 124790), (190, 99832), (304, 62395), (380, 49916), (760, 24958), (1520, 12479)]