20179720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45863}}^1$

素因数の和:45885

約数の個数: 32

約数和(自身を含む): 49533120

約数和(自身を除く): 29353400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45863, 91726, 183452, 229315, 366904, 458630, 504493, 917260, 1008986, 1834520, 2017972, 2522465, 4035944, 5044930, 10089860, 20179720]

約数ペア:

[(1, 20179720), (2, 10089860), (4, 5044930), (5, 4035944), (8, 2522465), (10, 2017972), (11, 1834520), (20, 1008986), (22, 917260), (40, 504493), (44, 458630), (55, 366904), (88, 229315), (110, 183452), (220, 91726), (440, 45863)]