25409320

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1447}}^1$

素因数の和:1897

約数の個数: 32

約数和(自身を含む): 57340800

約数和(自身を除く): 31931480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1447, 1756, 2195, 2894, 3512, 4390, 5788, 7235, 8780, 11576, 14470, 17560, 28940, 57880, 635233, 1270466, 2540932, 3176165, 5081864, 6352330, 12704660, 25409320]

約数ペア:

[(1, 25409320), (2, 12704660), (4, 6352330), (5, 5081864), (8, 3176165), (10, 2540932), (20, 1270466), (40, 635233), (439, 57880), (878, 28940), (1447, 17560), (1756, 14470), (2195, 11576), (2894, 8780), (3512, 7235), (4390, 5788)]