19395920

素因数分解:

$2^4\times 5^1\times {\mathrm{242449}}^1$

素因数の和:242462

約数の個数: 20

約数和(自身を含む): 45095700

約数和(自身を除く): 25699780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242449, 484898, 969796, 1212245, 1939592, 2424490, 3879184, 4848980, 9697960, 19395920]

約数ペア:

[(1, 19395920), (2, 9697960), (4, 4848980), (5, 3879184), (8, 2424490), (10, 1939592), (16, 1212245), (20, 969796), (40, 484898), (80, 242449)]