25874660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{439}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 62388480

約数和(自身を除く): 36513820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 421, 439, 842, 878, 1684, 1756, 2105, 2195, 2947, 3073, 4210, 4390, 5894, 6146, 8420, 8780, 11788, 12292, 14735, 15365, 29470, 30730, 58940, 61460, 184819, 369638, 739276, 924095, 1293733, 1848190, 2587466, 3696380, 5174932, 6468665, 12937330, 25874660]

約数ペア:

[(1, 25874660), (2, 12937330), (4, 6468665), (5, 5174932), (7, 3696380), (10, 2587466), (14, 1848190), (20, 1293733), (28, 924095), (35, 739276), (70, 369638), (140, 184819), (421, 61460), (439, 58940), (842, 30730), (878, 29470), (1684, 15365), (1756, 14735), (2105, 12292), (2195, 11788), (2947, 8780), (3073, 8420), (4210, 6146), (4390, 5894)]