19077320

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{937}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 43054200

約数和(自身を除く): 23976880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 937, 1018, 1874, 2036, 2545, 3748, 4072, 4685, 5090, 7496, 9370, 10180, 18740, 20360, 37480, 476933, 953866, 1907732, 2384665, 3815464, 4769330, 9538660, 19077320]

約数ペア:

[(1, 19077320), (2, 9538660), (4, 4769330), (5, 3815464), (8, 2384665), (10, 1907732), (20, 953866), (40, 476933), (509, 37480), (937, 20360), (1018, 18740), (1874, 10180), (2036, 9370), (2545, 7496), (3748, 5090), (4072, 4685)]