20780650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37783}}^1$

素因数の和:37806

約数の個数: 24

約数和(自身を含む): 42166944

約数和(自身を除く): 21386294

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 37783, 75566, 188915, 377830, 415613, 831226, 944575, 1889150, 2078065, 4156130, 10390325, 20780650]

約数ペア:

[(1, 20780650), (2, 10390325), (5, 4156130), (10, 2078065), (11, 1889150), (22, 944575), (25, 831226), (50, 415613), (55, 377830), (110, 188915), (275, 75566), (550, 37783)]