20473280

素因数分解:

$2^6\times 5^1\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:621

約数の個数: 56

約数和(自身を含む): 49213008

約数和(自身を除く): 28739728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 137, 160, 274, 320, 467, 548, 685, 934, 1096, 1370, 1868, 2192, 2335, 2740, 3736, 4384, 4670, 5480, 7472, 8768, 9340, 10960, 14944, 18680, 21920, 29888, 37360, 43840, 63979, 74720, 127958, 149440, 255916, 319895, 511832, 639790, 1023664, 1279580, 2047328, 2559160, 4094656, 5118320, 10236640, 20473280]

約数ペア:

[(1, 20473280), (2, 10236640), (4, 5118320), (5, 4094656), (8, 2559160), (10, 2047328), (16, 1279580), (20, 1023664), (32, 639790), (40, 511832), (64, 319895), (80, 255916), (137, 149440), (160, 127958), (274, 74720), (320, 63979), (467, 43840), (548, 37360), (685, 29888), (934, 21920), (1096, 18680), (1370, 14944), (1868, 10960), (2192, 9340), (2335, 8768), (2740, 7472), (3736, 5480), (4384, 4670)]