19554470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{431}}^1$

素因数の和:800

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 18547930

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 349, 431, 698, 862, 1745, 2155, 3490, 4310, 4537, 5603, 9074, 11206, 22685, 28015, 45370, 56030, 150419, 300838, 752095, 1504190, 1955447, 3910894, 9777235, 19554470]

約数ペア:

[(1, 19554470), (2, 9777235), (5, 3910894), (10, 1955447), (13, 1504190), (26, 752095), (65, 300838), (130, 150419), (349, 56030), (431, 45370), (698, 28015), (862, 22685), (1745, 11206), (2155, 9074), (3490, 5603), (4310, 4537)]