20790080

素因数分解:

$2^6\times 5^1\times {\mathrm{64969}}^1$

素因数の和:64986

約数の個数: 28

約数和(自身を含む): 49507140

約数和(自身を除く): 28717060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64969, 129938, 259876, 324845, 519752, 649690, 1039504, 1299380, 2079008, 2598760, 4158016, 5197520, 10395040, 20790080]

約数ペア:

[(1, 20790080), (2, 10395040), (4, 5197520), (5, 4158016), (8, 2598760), (10, 2079008), (16, 1299380), (20, 1039504), (32, 649690), (40, 519752), (64, 324845), (80, 259876), (160, 129938), (320, 64969)]