201641320

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{25589}}^1$

素因数の和:25797

約数の個数: 32

約数和(自身を含む): 456013800

約数和(自身を除く): 254372480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 25589, 51178, 102356, 127945, 204712, 255890, 511780, 1023560, 5041033, 10082066, 20164132, 25205165, 40328264, 50410330, 100820660, 201641320]

約数ペア:

[(1, 201641320), (2, 100820660), (4, 50410330), (5, 40328264), (8, 25205165), (10, 20164132), (20, 10082066), (40, 5041033), (197, 1023560), (394, 511780), (788, 255890), (985, 204712), (1576, 127945), (1970, 102356), (3940, 51178), (7880, 25589)]