20881240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22697}}^1$

素因数の和:22731

約数の個数: 32

約数和(自身を含む): 49027680

約数和(自身を除く): 28146440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22697, 45394, 90788, 113485, 181576, 226970, 453940, 522031, 907880, 1044062, 2088124, 2610155, 4176248, 5220310, 10440620, 20881240]

約数ペア:

[(1, 20881240), (2, 10440620), (4, 5220310), (5, 4176248), (8, 2610155), (10, 2088124), (20, 1044062), (23, 907880), (40, 522031), (46, 453940), (92, 226970), (115, 181576), (184, 113485), (230, 90788), (460, 45394), (920, 22697)]