20180241872

素因数分解:

$2^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1\times {\mathrm{2591}}^1$

素因数の和:3156

約数の個数: 80

約数和(自身を含む): 45056259072

約数和(自身を除く): 24876017200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 197, 353, 394, 706, 788, 1379, 1412, 1576, 2471, 2591, 2758, 2824, 3152, 4942, 5182, 5516, 5648, 9884, 10364, 11032, 18137, 19768, 20728, 22064, 36274, 39536, 41456, 69541, 72548, 139082, 145096, 278164, 290192, 486787, 510427, 556328, 914623, 973574, 1020854, 1112656, 1829246, 1947148, 2041708, 3572989, 3658492, 3894296, 4083416, 6402361, 7145978, 7316984, 7788592, 8166832, 12804722, 14291956, 14633968, 25609444, 28583912, 51218888, 57167824, 102437776, 180180731, 360361462, 720722924, 1261265117, 1441445848, 2522530234, 2882891696, 5045060468, 10090120936, 20180241872]

約数ペア:

[(1, 20180241872), (2, 10090120936), (4, 5045060468), (7, 2882891696), (8, 2522530234), (14, 1441445848), (16, 1261265117), (28, 720722924), (56, 360361462), (112, 180180731), (197, 102437776), (353, 57167824), (394, 51218888), (706, 28583912), (788, 25609444), (1379, 14633968), (1412, 14291956), (1576, 12804722), (2471, 8166832), (2591, 7788592), (2758, 7316984), (2824, 7145978), (3152, 6402361), (4942, 4083416), (5182, 3894296), (5516, 3658492), (5648, 3572989), (9884, 2041708), (10364, 1947148), (11032, 1829246), (18137, 1112656), (19768, 1020854), (20728, 973574), (22064, 914623), (36274, 556328), (39536, 510427), (41456, 486787), (69541, 290192), (72548, 278164), (139082, 145096)]