20149480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38749}}^1$

素因数の和:38773

約数の個数: 32

約数和(自身を含む): 48825000

約数和(自身を除く): 28675520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38749, 77498, 154996, 193745, 309992, 387490, 503737, 774980, 1007474, 1549960, 2014948, 2518685, 4029896, 5037370, 10074740, 20149480]

約数ペア:

[(1, 20149480), (2, 10074740), (4, 5037370), (5, 4029896), (8, 2518685), (10, 2014948), (13, 1549960), (20, 1007474), (26, 774980), (40, 503737), (52, 387490), (65, 309992), (104, 193745), (130, 154996), (260, 77498), (520, 38749)]