20814660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115637}}^1$

素因数の和:115652

約数の個数: 36

約数和(自身を含む): 63138348

約数和(自身を除く): 42323688

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115637, 231274, 346911, 462548, 578185, 693822, 1040733, 1156370, 1387644, 1734555, 2081466, 2312740, 3469110, 4162932, 5203665, 6938220, 10407330, 20814660]

約数ペア:

[(1, 20814660), (2, 10407330), (3, 6938220), (4, 5203665), (5, 4162932), (6, 3469110), (9, 2312740), (10, 2081466), (12, 1734555), (15, 1387644), (18, 1156370), (20, 1040733), (30, 693822), (36, 578185), (45, 462548), (60, 346911), (90, 231274), (180, 115637)]