20983920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87433}}^1$

素因数の和:87449

約数の個数: 40

約数和(自身を含む): 65050896

約数和(自身を除く): 44066976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87433, 174866, 262299, 349732, 437165, 524598, 699464, 874330, 1049196, 1311495, 1398928, 1748660, 2098392, 2622990, 3497320, 4196784, 5245980, 6994640, 10491960, 20983920]

約数ペア:

[(1, 20983920), (2, 10491960), (3, 6994640), (4, 5245980), (5, 4196784), (6, 3497320), (8, 2622990), (10, 2098392), (12, 1748660), (15, 1398928), (16, 1311495), (20, 1049196), (24, 874330), (30, 699464), (40, 524598), (48, 437165), (60, 349732), (80, 262299), (120, 174866), (240, 87433)]