206820728

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 411505920

約数和(自身を除く): 204685192

約数列:

[1, 2, 4, 8, 41, 71, 82, 83, 107, 142, 164, 166, 214, 284, 328, 332, 428, 568, 664, 856, 2911, 3403, 4387, 5822, 5893, 6806, 7597, 8774, 8881, 11644, 11786, 13612, 15194, 17548, 17762, 23288, 23572, 27224, 30388, 35096, 35524, 47144, 60776, 71048, 241613, 311477, 364121, 483226, 622954, 630551, 728242, 966452, 1245908, 1261102, 1456484, 1932904, 2491816, 2522204, 2912968, 5044408, 25852591, 51705182, 103410364, 206820728]

約数ペア:

[(1, 206820728), (2, 103410364), (4, 51705182), (8, 25852591), (41, 5044408), (71, 2912968), (82, 2522204), (83, 2491816), (107, 1932904), (142, 1456484), (164, 1261102), (166, 1245908), (214, 966452), (284, 728242), (328, 630551), (332, 622954), (428, 483226), (568, 364121), (664, 311477), (856, 241613), (2911, 71048), (3403, 60776), (4387, 47144), (5822, 35524), (5893, 35096), (6806, 30388), (7597, 27224), (8774, 23572), (8881, 23288), (11644, 17762), (11786, 17548), (13612, 15194)]