20890672

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4093}}^1$

素因数の和:4141

約数の個数: 40

約数和(自身を含む): 45689040

約数和(自身を除く): 24798368

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 319, 464, 638, 1276, 2552, 4093, 5104, 8186, 16372, 32744, 45023, 65488, 90046, 118697, 180092, 237394, 360184, 474788, 720368, 949576, 1305667, 1899152, 2611334, 5222668, 10445336, 20890672]

約数ペア:

[(1, 20890672), (2, 10445336), (4, 5222668), (8, 2611334), (11, 1899152), (16, 1305667), (22, 949576), (29, 720368), (44, 474788), (58, 360184), (88, 237394), (116, 180092), (176, 118697), (232, 90046), (319, 65488), (464, 45023), (638, 32744), (1276, 16372), (2552, 8186), (4093, 5104)]