20517480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56993}}^1$

素因数の和:57010

約数の個数: 48

約数和(自身を含む): 66682980

約数和(自身を除く): 46165500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56993, 113986, 170979, 227972, 284965, 341958, 455944, 512937, 569930, 683916, 854895, 1025874, 1139860, 1367832, 1709790, 2051748, 2279720, 2564685, 3419580, 4103496, 5129370, 6839160, 10258740, 20517480]

約数ペア:

[(1, 20517480), (2, 10258740), (3, 6839160), (4, 5129370), (5, 4103496), (6, 3419580), (8, 2564685), (9, 2279720), (10, 2051748), (12, 1709790), (15, 1367832), (18, 1139860), (20, 1025874), (24, 854895), (30, 683916), (36, 569930), (40, 512937), (45, 455944), (60, 341958), (72, 284965), (90, 227972), (120, 170979), (180, 113986), (360, 56993)]