18047440

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{521}}^1$

素因数の和:967

約数の個数: 40

約数和(自身を含む): 42137928

約数和(自身を除く): 24090488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 521, 866, 1042, 1732, 2084, 2165, 2605, 3464, 4168, 4330, 5210, 6928, 8336, 8660, 10420, 17320, 20840, 34640, 41680, 225593, 451186, 902372, 1127965, 1804744, 2255930, 3609488, 4511860, 9023720, 18047440]

約数ペア:

[(1, 18047440), (2, 9023720), (4, 4511860), (5, 3609488), (8, 2255930), (10, 1804744), (16, 1127965), (20, 902372), (40, 451186), (80, 225593), (433, 41680), (521, 34640), (866, 20840), (1042, 17320), (1732, 10420), (2084, 8660), (2165, 8336), (2605, 6928), (3464, 5210), (4168, 4330)]