287247520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{256471}}^1$

素因数の和:256493

約数の個数: 48

約数和(自身を含む): 775571328

約数和(自身を除く): 488323808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 256471, 512942, 1025884, 1282355, 1795297, 2051768, 2564710, 3590594, 4103536, 5129420, 7181188, 8207072, 8976485, 10258840, 14362376, 17952970, 20517680, 28724752, 35905940, 41035360, 57449504, 71811880, 143623760, 287247520]

約数ペア:

[(1, 287247520), (2, 143623760), (4, 71811880), (5, 57449504), (7, 41035360), (8, 35905940), (10, 28724752), (14, 20517680), (16, 17952970), (20, 14362376), (28, 10258840), (32, 8976485), (35, 8207072), (40, 7181188), (56, 5129420), (70, 4103536), (80, 3590594), (112, 2564710), (140, 2051768), (160, 1795297), (224, 1282355), (280, 1025884), (560, 512942), (1120, 256471)]