20512462160

素因数分解:

$2^4\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{234589}}^1$

素因数の和:235695

約数の個数: 40

約数和(自身を含む): 47735311560

約数和(自身を除く): 27222849400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1093, 2186, 4372, 5465, 8744, 10930, 17488, 21860, 43720, 87440, 234589, 469178, 938356, 1172945, 1876712, 2345890, 3753424, 4691780, 9383560, 18767120, 256405777, 512811554, 1025623108, 1282028885, 2051246216, 2564057770, 4102492432, 5128115540, 10256231080, 20512462160]

約数ペア:

[(1, 20512462160), (2, 10256231080), (4, 5128115540), (5, 4102492432), (8, 2564057770), (10, 2051246216), (16, 1282028885), (20, 1025623108), (40, 512811554), (80, 256405777), (1093, 18767120), (2186, 9383560), (4372, 4691780), (5465, 3753424), (8744, 2345890), (10930, 1876712), (17488, 1172945), (21860, 938356), (43720, 469178), (87440, 234589)]