8686040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 22464000

約数和(自身を除く): 13777960

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1039, 1045, 1672, 2078, 2090, 4156, 4180, 5195, 8312, 8360, 10390, 11429, 19741, 20780, 22858, 39482, 41560, 45716, 57145, 78964, 91432, 98705, 114290, 157928, 197410, 217151, 228580, 394820, 434302, 457160, 789640, 868604, 1085755, 1737208, 2171510, 4343020, 8686040]

約数ペア:

[(1, 8686040), (2, 4343020), (4, 2171510), (5, 1737208), (8, 1085755), (10, 868604), (11, 789640), (19, 457160), (20, 434302), (22, 394820), (38, 228580), (40, 217151), (44, 197410), (55, 157928), (76, 114290), (88, 98705), (95, 91432), (110, 78964), (152, 57145), (190, 45716), (209, 41560), (220, 39482), (380, 22858), (418, 20780), (440, 19741), (760, 11429), (836, 10390), (1039, 8360), (1045, 8312), (1672, 5195), (2078, 4180), (2090, 4156)]