25461680

素因数分解:

$2^4\times 5^1\times {\mathrm{318271}}^1$

素因数の和:318284

約数の個数: 20

約数和(自身を含む): 59198592

約数和(自身を除く): 33736912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 318271, 636542, 1273084, 1591355, 2546168, 3182710, 5092336, 6365420, 12730840, 25461680]

約数ペア:

[(1, 25461680), (2, 12730840), (4, 6365420), (5, 5092336), (8, 3182710), (10, 2546168), (16, 1591355), (20, 1273084), (40, 636542), (80, 318271)]