81406976

素因数分解:

$2^{10}\times 7^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:345

約数の個数: 88

約数和(自身を含む): 191206176

約数和(自身を除く): 109799200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 256, 277, 287, 328, 448, 512, 554, 574, 656, 896, 1024, 1108, 1148, 1312, 1792, 1939, 2216, 2296, 2624, 3584, 3878, 4432, 4592, 5248, 7168, 7756, 8864, 9184, 10496, 11357, 15512, 17728, 18368, 20992, 22714, 31024, 35456, 36736, 41984, 45428, 62048, 70912, 73472, 79499, 90856, 124096, 141824, 146944, 158998, 181712, 248192, 283648, 293888, 317996, 363424, 496384, 635992, 726848, 992768, 1271984, 1453696, 1985536, 2543968, 2907392, 5087936, 5814784, 10175872, 11629568, 20351744, 40703488, 81406976]

約数ペア:

[(1, 81406976), (2, 40703488), (4, 20351744), (7, 11629568), (8, 10175872), (14, 5814784), (16, 5087936), (28, 2907392), (32, 2543968), (41, 1985536), (56, 1453696), (64, 1271984), (82, 992768), (112, 726848), (128, 635992), (164, 496384), (224, 363424), (256, 317996), (277, 293888), (287, 283648), (328, 248192), (448, 181712), (512, 158998), (554, 146944), (574, 141824), (656, 124096), (896, 90856), (1024, 79499), (1108, 73472), (1148, 70912), (1312, 62048), (1792, 45428), (1939, 41984), (2216, 36736), (2296, 35456), (2624, 31024), (3584, 22714), (3878, 20992), (4432, 18368), (4592, 17728), (5248, 15512), (7168, 11357), (7756, 10496), (8864, 9184)]