20516220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37993}}^1$

素因数の和:38011

約数の個数: 48

約数和(自身を含む): 63829920

約数和(自身を除く): 43313700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 37993, 75986, 113979, 151972, 189965, 227958, 341937, 379930, 455916, 569895, 683874, 759860, 1025811, 1139790, 1367748, 1709685, 2051622, 2279580, 3419370, 4103244, 5129055, 6838740, 10258110, 20516220]

約数ペア:

[(1, 20516220), (2, 10258110), (3, 6838740), (4, 5129055), (5, 4103244), (6, 3419370), (9, 2279580), (10, 2051622), (12, 1709685), (15, 1367748), (18, 1139790), (20, 1025811), (27, 759860), (30, 683874), (36, 569895), (45, 455916), (54, 379930), (60, 341937), (90, 227958), (108, 189965), (135, 151972), (180, 113979), (270, 75986), (540, 37993)]