25205720

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1361}}^1$

素因数の和:1835

約数の個数: 32

約数和(自身を含む): 56877120

約数和(自身を除く): 31671400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1361, 1852, 2315, 2722, 3704, 4630, 5444, 6805, 9260, 10888, 13610, 18520, 27220, 54440, 630143, 1260286, 2520572, 3150715, 5041144, 6301430, 12602860, 25205720]

約数ペア:

[(1, 25205720), (2, 12602860), (4, 6301430), (5, 5041144), (8, 3150715), (10, 2520572), (20, 1260286), (40, 630143), (463, 54440), (926, 27220), (1361, 18520), (1852, 13610), (2315, 10888), (2722, 9260), (3704, 6805), (4630, 5444)]