72978568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16319}}^1$

素因数の和:16381

約数の個数: 32

約数和(自身を含む): 150796800

約数和(自身を除く): 77818232

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 16319, 32638, 65276, 130552, 212147, 424294, 701717, 848588, 1403434, 1697176, 2806868, 5613736, 9122321, 18244642, 36489284, 72978568]

約数ペア:

[(1, 72978568), (2, 36489284), (4, 18244642), (8, 9122321), (13, 5613736), (26, 2806868), (43, 1697176), (52, 1403434), (86, 848588), (104, 701717), (172, 424294), (344, 212147), (559, 130552), (1118, 65276), (2236, 32638), (4472, 16319)]