20000880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27779}}^1$

素因数の和:27798

約数の個数: 60

約数和(自身を含む): 67172040

約数和(自身を除く): 47171160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27779, 55558, 83337, 111116, 138895, 166674, 222232, 250011, 277790, 333348, 416685, 444464, 500022, 555580, 666696, 833370, 1000044, 1111160, 1250055, 1333392, 1666740, 2000088, 2222320, 2500110, 3333480, 4000176, 5000220, 6666960, 10000440, 20000880]

約数ペア:

[(1, 20000880), (2, 10000440), (3, 6666960), (4, 5000220), (5, 4000176), (6, 3333480), (8, 2500110), (9, 2222320), (10, 2000088), (12, 1666740), (15, 1333392), (16, 1250055), (18, 1111160), (20, 1000044), (24, 833370), (30, 666696), (36, 555580), (40, 500022), (45, 444464), (48, 416685), (60, 333348), (72, 277790), (80, 250011), (90, 222232), (120, 166674), (144, 138895), (180, 111116), (240, 83337), (360, 55558), (720, 27779)]