20742660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115237}}^1$

素因数の和:115252

約数の個数: 36

約数和(自身を含む): 62919948

約数和(自身を除く): 42177288

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115237, 230474, 345711, 460948, 576185, 691422, 1037133, 1152370, 1382844, 1728555, 2074266, 2304740, 3457110, 4148532, 5185665, 6914220, 10371330, 20742660]

約数ペア:

[(1, 20742660), (2, 10371330), (3, 6914220), (4, 5185665), (5, 4148532), (6, 3457110), (9, 2304740), (10, 2074266), (12, 1728555), (15, 1382844), (18, 1152370), (20, 1037133), (30, 691422), (36, 576185), (45, 460948), (60, 345711), (90, 230474), (180, 115237)]