18419720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41863}}^1$

素因数の和:41885

約数の個数: 32

約数和(自身を含む): 45213120

約数和(自身を除く): 26793400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41863, 83726, 167452, 209315, 334904, 418630, 460493, 837260, 920986, 1674520, 1841972, 2302465, 3683944, 4604930, 9209860, 18419720]

約数ペア:

[(1, 18419720), (2, 9209860), (4, 4604930), (5, 3683944), (8, 2302465), (10, 1841972), (11, 1674520), (20, 920986), (22, 837260), (40, 460493), (44, 418630), (55, 334904), (88, 209315), (110, 167452), (220, 83726), (440, 41863)]