12771320

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2297}}^1$

素因数の和:2447

約数の個数: 32

約数和(自身を含む): 28954800

約数和(自身を除く): 16183480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2297, 2780, 4594, 5560, 9188, 11485, 18376, 22970, 45940, 91880, 319283, 638566, 1277132, 1596415, 2554264, 3192830, 6385660, 12771320]

約数ペア:

[(1, 12771320), (2, 6385660), (4, 3192830), (5, 2554264), (8, 1596415), (10, 1277132), (20, 638566), (40, 319283), (139, 91880), (278, 45940), (556, 22970), (695, 18376), (1112, 11485), (1390, 9188), (2297, 5560), (2780, 4594)]