2585720

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 5875200

約数和(自身を除く): 3289480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 509, 635, 1016, 1018, 1270, 2036, 2540, 2545, 4072, 5080, 5090, 10180, 20360, 64643, 129286, 258572, 323215, 517144, 646430, 1292860, 2585720]

約数ペア:

[(1, 2585720), (2, 1292860), (4, 646430), (5, 517144), (8, 323215), (10, 258572), (20, 129286), (40, 64643), (127, 20360), (254, 10180), (508, 5090), (509, 5080), (635, 4072), (1016, 2545), (1018, 2540), (1270, 2036)]