20351680

素因数分解:

$2^6\times 5^1\times {\mathrm{63599}}^1$

素因数の和:63616

約数の個数: 28

約数和(自身を含む): 48463200

約数和(自身を除く): 28111520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63599, 127198, 254396, 317995, 508792, 635990, 1017584, 1271980, 2035168, 2543960, 4070336, 5087920, 10175840, 20351680]

約数ペア:

[(1, 20351680), (2, 10175840), (4, 5087920), (5, 4070336), (8, 2543960), (10, 2035168), (16, 1271980), (20, 1017584), (32, 635990), (40, 508792), (64, 317995), (80, 254396), (160, 127198), (320, 63599)]