71811880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{256471}}^1$

素因数の和:256489

約数の個数: 32

約数和(自身を含む): 184659840

約数和(自身を除く): 112847960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 256471, 512942, 1025884, 1282355, 1795297, 2051768, 2564710, 3590594, 5129420, 7181188, 8976485, 10258840, 14362376, 17952970, 35905940, 71811880]

約数ペア:

[(1, 71811880), (2, 35905940), (4, 17952970), (5, 14362376), (7, 10258840), (8, 8976485), (10, 7181188), (14, 5129420), (20, 3590594), (28, 2564710), (35, 2051768), (40, 1795297), (56, 1282355), (70, 1025884), (140, 512942), (280, 256471)]