19720199744

素因数分解:

$2^6\times 7^2\times {\mathrm{83}}^1\times {\mathrm{239}}^1\times {\mathrm{317}}^1$

素因数の和:665

約数の個数: 168

約数和(自身を含む): 46408360320

約数和(自身を除く): 26688160576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 83, 98, 112, 166, 196, 224, 239, 317, 332, 392, 448, 478, 581, 634, 664, 784, 956, 1162, 1268, 1328, 1568, 1673, 1912, 2219, 2324, 2536, 2656, 3136, 3346, 3824, 4067, 4438, 4648, 5072, 5312, 6692, 7648, 8134, 8876, 9296, 10144, 11711, 13384, 15296, 15533, 16268, 17752, 18592, 19837, 20288, 23422, 26311, 26768, 31066, 32536, 35504, 37184, 39674, 46844, 52622, 53536, 62132, 65072, 71008, 75763, 79348, 93688, 105244, 107072, 124264, 130144, 138859, 142016, 151526, 158696, 184177, 187376, 210488, 248528, 260288, 277718, 303052, 317392, 368354, 374752, 420976, 497056, 530341, 555436, 606104, 634784, 736708, 749504, 841952, 972013, 994112, 1060682, 1110872, 1212208, 1269568, 1289239, 1473416, 1683904, 1944026, 2121364, 2221744, 2424416, 2578478, 2946832, 3712387, 3888052, 4242728, 4443488, 4848832, 5156956, 5893664, 6288329, 7424774, 7776104, 8485456, 8886976, 10313912, 11787328, 12576658, 14849548, 15552208, 16970912, 20627824, 25153316, 29699096, 31104416, 33941824, 41255648, 44018303, 50306632, 59398192, 62208832, 82511296, 88036606, 100613264, 118796384, 176073212, 201226528, 237592768, 308128121, 352146424, 402453056, 616256242, 704292848, 1232512484, 1408585696, 2465024968, 2817171392, 4930049936, 9860099872, 19720199744]

約数ペア:

[(1, 19720199744), (2, 9860099872), (4, 4930049936), (7, 2817171392), (8, 2465024968), (14, 1408585696), (16, 1232512484), (28, 704292848), (32, 616256242), (49, 402453056), (56, 352146424), (64, 308128121), (83, 237592768), (98, 201226528), (112, 176073212), (166, 118796384), (196, 100613264), (224, 88036606), (239, 82511296), (317, 62208832), (332, 59398192), (392, 50306632), (448, 44018303), (478, 41255648), (581, 33941824), (634, 31104416), (664, 29699096), (784, 25153316), (956, 20627824), (1162, 16970912), (1268, 15552208), (1328, 14849548), (1568, 12576658), (1673, 11787328), (1912, 10313912), (2219, 8886976), (2324, 8485456), (2536, 7776104), (2656, 7424774), (3136, 6288329), (3346, 5893664), (3824, 5156956), (4067, 4848832), (4438, 4443488), (4648, 4242728), (5072, 3888052), (5312, 3712387), (6692, 2946832), (7648, 2578478), (8134, 2424416), (8876, 2221744), (9296, 2121364), (10144, 1944026), (11711, 1683904), (13384, 1473416), (15296, 1289239), (15533, 1269568), (16268, 1212208), (17752, 1110872), (18592, 1060682), (19837, 994112), (20288, 972013), (23422, 841952), (26311, 749504), (26768, 736708), (31066, 634784), (32536, 606104), (35504, 555436), (37184, 530341), (39674, 497056), (46844, 420976), (52622, 374752), (53536, 368354), (62132, 317392), (65072, 303052), (71008, 277718), (75763, 260288), (79348, 248528), (93688, 210488), (105244, 187376), (107072, 184177), (124264, 158696), (130144, 151526), (138859, 142016)]