681019904

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:557

約数の個数: 80

約数和(自身を含む): 1421266176

約数和(自身を除く): 740246272

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 107, 124, 128, 214, 248, 256, 401, 428, 496, 512, 802, 856, 992, 1604, 1712, 1984, 3208, 3317, 3424, 3968, 6416, 6634, 6848, 7936, 12431, 12832, 13268, 13696, 15872, 24862, 25664, 26536, 27392, 42907, 49724, 51328, 53072, 54784, 85814, 99448, 102656, 106144, 171628, 198896, 205312, 212288, 343256, 397792, 424576, 686512, 795584, 849152, 1330117, 1373024, 1591168, 1698304, 2660234, 2746048, 3182336, 5320468, 5492096, 6364672, 10640936, 10984192, 21281872, 21968384, 42563744, 85127488, 170254976, 340509952, 681019904]

約数ペア:

[(1, 681019904), (2, 340509952), (4, 170254976), (8, 85127488), (16, 42563744), (31, 21968384), (32, 21281872), (62, 10984192), (64, 10640936), (107, 6364672), (124, 5492096), (128, 5320468), (214, 3182336), (248, 2746048), (256, 2660234), (401, 1698304), (428, 1591168), (496, 1373024), (512, 1330117), (802, 849152), (856, 795584), (992, 686512), (1604, 424576), (1712, 397792), (1984, 343256), (3208, 212288), (3317, 205312), (3424, 198896), (3968, 171628), (6416, 106144), (6634, 102656), (6848, 99448), (7936, 85814), (12431, 54784), (12832, 53072), (13268, 51328), (13696, 49724), (15872, 42907), (24862, 27392), (25664, 26536)]