20881880

素因数分解:

$2^3\times 5^1\times {\mathrm{522047}}^1$

素因数の和:522058

約数の個数: 16

約数和(自身を含む): 46984320

約数和(自身を除く): 26102440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 522047, 1044094, 2088188, 2610235, 4176376, 5220470, 10440940, 20881880]

約数ペア:

[(1, 20881880), (2, 10440940), (4, 5220470), (5, 4176376), (8, 2610235), (10, 2088188), (20, 1044094), (40, 522047)]