20772160

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{467}}^1$

素因数の和:623

約数の個数: 56

約数和(自身を含む): 49926240

約数和(自身を除く): 29154080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 467, 556, 695, 934, 1112, 1390, 1868, 2224, 2335, 2780, 3736, 4448, 4670, 5560, 7472, 8896, 9340, 11120, 14944, 18680, 22240, 29888, 37360, 44480, 64913, 74720, 129826, 149440, 259652, 324565, 519304, 649130, 1038608, 1298260, 2077216, 2596520, 4154432, 5193040, 10386080, 20772160]

約数ペア:

[(1, 20772160), (2, 10386080), (4, 5193040), (5, 4154432), (8, 2596520), (10, 2077216), (16, 1298260), (20, 1038608), (32, 649130), (40, 519304), (64, 324565), (80, 259652), (139, 149440), (160, 129826), (278, 74720), (320, 64913), (467, 44480), (556, 37360), (695, 29888), (934, 22240), (1112, 18680), (1390, 14944), (1868, 11120), (2224, 9340), (2335, 8896), (2780, 7472), (3736, 5560), (4448, 4670)]