190019720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431863}}^1$

素因数の和:431885

約数の個数: 32

約数和(自身を含む): 466413120

約数和(自身を除く): 276393400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 431863, 863726, 1727452, 2159315, 3454904, 4318630, 4750493, 8637260, 9500986, 17274520, 19001972, 23752465, 38003944, 47504930, 95009860, 190019720]

約数ペア:

[(1, 190019720), (2, 95009860), (4, 47504930), (5, 38003944), (8, 23752465), (10, 19001972), (11, 17274520), (20, 9500986), (22, 8637260), (40, 4750493), (44, 4318630), (55, 3454904), (88, 2159315), (110, 1727452), (220, 863726), (440, 431863)]