20005653880

素因数分解:

$2^3\times 5^1\times {\mathrm{500141347}}^1$

素因数の和:500141358

約数の個数: 16

約数和(自身を含む): 45012721320

約数和(自身を除く): 25007067440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 500141347, 1000282694, 2000565388, 2500706735, 4001130776, 5001413470, 10002826940, 20005653880]

約数ペア:

[(1, 20005653880), (2, 10002826940), (4, 5001413470), (5, 4001130776), (8, 2500706735), (10, 2000565388), (20, 1000282694), (40, 500141347)]