161211904

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1451}}^1$

素因数の和:1507

約数の個数: 80

約数和(自身を含む): 380261376

約数和(自身を除く): 219049472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 868, 896, 992, 1451, 1736, 1792, 1984, 2902, 3472, 3584, 3968, 5804, 6944, 7936, 10157, 11608, 13888, 15872, 20314, 23216, 27776, 40628, 44981, 46432, 55552, 81256, 89962, 92864, 111104, 162512, 179924, 185728, 314867, 325024, 359848, 371456, 629734, 650048, 719696, 742912, 1259468, 1300096, 1439392, 2518936, 2600192, 2878784, 5037872, 5200384, 5757568, 10075744, 11515136, 20151488, 23030272, 40302976, 80605952, 161211904]

約数ペア:

[(1, 161211904), (2, 80605952), (4, 40302976), (7, 23030272), (8, 20151488), (14, 11515136), (16, 10075744), (28, 5757568), (31, 5200384), (32, 5037872), (56, 2878784), (62, 2600192), (64, 2518936), (112, 1439392), (124, 1300096), (128, 1259468), (217, 742912), (224, 719696), (248, 650048), (256, 629734), (434, 371456), (448, 359848), (496, 325024), (512, 314867), (868, 185728), (896, 179924), (992, 162512), (1451, 111104), (1736, 92864), (1792, 89962), (1984, 81256), (2902, 55552), (3472, 46432), (3584, 44981), (3968, 40628), (5804, 27776), (6944, 23216), (7936, 20314), (10157, 15872), (11608, 13888)]