25620040

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1459}}^1$

素因数の和:1909

約数の個数: 32

約数和(自身を含む): 57816000

約数和(自身を除く): 32195960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1459, 1756, 2195, 2918, 3512, 4390, 5836, 7295, 8780, 11672, 14590, 17560, 29180, 58360, 640501, 1281002, 2562004, 3202505, 5124008, 6405010, 12810020, 25620040]

約数ペア:

[(1, 25620040), (2, 12810020), (4, 6405010), (5, 5124008), (8, 3202505), (10, 2562004), (20, 1281002), (40, 640501), (439, 58360), (878, 29180), (1459, 17560), (1756, 14590), (2195, 11672), (2918, 8780), (3512, 7295), (4390, 5836)]