20122895720

素因数分解:

$2^3\times 5^1\times {\mathrm{3823}}^1\times {\mathrm{131591}}^1$

素因数の和:135425

約数の個数: 32

約数和(自身を含む): 45288702720

約数和(自身を除く): 25165807000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3823, 7646, 15292, 19115, 30584, 38230, 76460, 131591, 152920, 263182, 526364, 657955, 1052728, 1315910, 2631820, 5263640, 503072393, 1006144786, 2012289572, 2515361965, 4024579144, 5030723930, 10061447860, 20122895720]

約数ペア:

[(1, 20122895720), (2, 10061447860), (4, 5030723930), (5, 4024579144), (8, 2515361965), (10, 2012289572), (20, 1006144786), (40, 503072393), (3823, 5263640), (7646, 2631820), (15292, 1315910), (19115, 1052728), (30584, 657955), (38230, 526364), (76460, 263182), (131591, 152920)]