20530040

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1523}}^1$

素因数の和:1871

約数の個数: 32

約数和(自身を含む): 46360080

約数和(自身を除く): 25830040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 674, 1348, 1523, 1685, 2696, 3046, 3370, 6092, 6740, 7615, 12184, 13480, 15230, 30460, 60920, 513251, 1026502, 2053004, 2566255, 4106008, 5132510, 10265020, 20530040]

約数ペア:

[(1, 20530040), (2, 10265020), (4, 5132510), (5, 4106008), (8, 2566255), (10, 2053004), (20, 1026502), (40, 513251), (337, 60920), (674, 30460), (1348, 15230), (1523, 13480), (1685, 12184), (2696, 7615), (3046, 6740), (3370, 6092)]