20822786560

素因数分解:

$2^9\times 5^1\times {\mathrm{8133901}}^1$

素因数の和:8133924

約数の個数: 40

約数和(自身を含む): 49925890476

約数和(自身を除く): 29103103916

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 8133901, 16267802, 32535604, 40669505, 65071208, 81339010, 130142416, 162678020, 260284832, 325356040, 520569664, 650712080, 1041139328, 1301424160, 2082278656, 2602848320, 4164557312, 5205696640, 10411393280, 20822786560]

約数ペア:

[(1, 20822786560), (2, 10411393280), (4, 5205696640), (5, 4164557312), (8, 2602848320), (10, 2082278656), (16, 1301424160), (20, 1041139328), (32, 650712080), (40, 520569664), (64, 325356040), (80, 260284832), (128, 162678020), (160, 130142416), (256, 81339010), (320, 65071208), (512, 40669505), (640, 32535604), (1280, 16267802), (2560, 8133901)]